{"id":10435,"date":"2026-09-29T20:00:00","date_gmt":"2026-09-29T13:00:00","guid":{"rendered":"https:\/\/drsoaraweeurology.com\/?p=10435"},"modified":"2026-08-30T08:43:39","modified_gmt":"2026-08-30T01:43:39","slug":"night-owl-chronotype-low-testosterone","status":"publish","type":"post","link":"https:\/\/drsoaraweeurology.com\/ja\/2026\/09\/29\/night-owl-chronotype-low-testosterone\/","title":{"rendered":"The Night Owl Penalty: How Your Sleep Schedule Is Quietly Draining Your Testosterone"},"content":{"rendered":"\n<div class=\"wp-block-columns coblocks-author-columns has-background is-layout-flex wp-container-core-columns-is-layout-e269d6e6 wp-block-columns-is-layout-flex\" style=\"background-color:#8C8C971A;padding-top:2.5rem;padding-right:2.5rem;padding-bottom:2.5rem;padding-left:2.5rem\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<figure class=\"wp-block-image size-full is-style-rounded\"><img data-recalc-dims=\"1\" 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onmouseout=\"this.style.transform='scale(1)'\">\n    <svg width=\"28\" height=\"28\" viewBox=\"0 0 24 24\" fill=\"currentColor\">\n      <path d=\"M5.242 13.769L0.5 9.5 12 1l11.5 8.5-4.742 4.269C17.548 11.249 14.978 9.5 12 9.5c-2.977 0-5.548 1.748-6.758 4.269zM12 10a7 7 0 1 0 0 14 7 7 0 0 0 0-14z\"\/>\n    <\/svg>\n  <\/a>\n  \n<\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"600\" data-attachment-id=\"10639\" data-permalink=\"https:\/\/drsoaraweeurology.com\/ja\/the-night-owl-penalty_-sleep-testosterone\/\" data-orig-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?fit=800%2C600&amp;ssl=1\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"The Night Owl Penalty_ Sleep &amp;#038; Testosterone\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?fit=800%2C600&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?resize=800%2C600&#038;ssl=1\" alt=\"Infographic on the night owl penalty \u2014 how poor sleep and sleep deprivation lower men's testosterone levels\" class=\"wp-image-10639\" srcset=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/06\/The-Night-Owl-Penalty_-Sleep-Testosterone.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">The night owl penalty: how a late sleep schedule can quietly suppress men&#8217;s testosterone.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Many men treat their body like a personal laboratory. We tweak our diets, optimize our workouts, squeeze in cardio, and take supplements \u2014 all in pursuit of peak energy, focus, and vitality. In my practice at Bangkok Hospital Headquarters, when a man arrives complaining of fatigue, brain fog, and a fading sex drive, one of the first things we look at is his <a href=\"https:\/\/drsoaraweeurology.com\/2026\/04\/21\/testosterone-barometer-mens-health\/\">testosterone<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But what if the missing piece of your hormonal puzzle is not <em>how much<\/em> you lift or <em>what<\/em> you eat \u2014 but <em>when<\/em> you sleep?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recently, at the <strong>American Urological Association (AUA) 2026 Annual Meeting<\/strong> in Washington, DC, while shadowing <strong>Professor Mohit Khera<\/strong>, I sat in on a presentation by researchers from Weill Cornell Medicine that made me rethink a question I ask patients too casually. Using a large set of national health data, they examined an under-appreciated factor in men&#8217;s hormonal health: the <strong>night-owl chronotype<\/strong>. Burning the midnight oil may cost more than a groggy morning.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Your Chronotype: The Body&#8217;s Internal Clock<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Your chronotype is your body&#8217;s natural preference for when to sleep and wake. It is substantially influenced by genetics \u2014 think of it as your internal clock&#8217;s factory setting. Most men fall into one of three groups:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Early birds<\/strong> \u2014 naturally wake with the sun, feel sharpest before noon, and wind down early in the evening.<\/li>\n\n\n\n<li><strong>Intermediates<\/strong> \u2014 the flexible majority who follow a standard day-night schedule without a strong preference either way.<\/li>\n\n\n\n<li><strong>Night owls<\/strong> \u2014 men who feel a surge of energy and focus late at night, but struggle with early mornings.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Doctors have long known that severe sleep deprivation and rotating night shifts disturb male hormones. The open question was narrower: if a night owl still gets a full seven or eight hours, does his late schedule <em>itself<\/em> track with lower testosterone?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What the Study Found<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The researchers analyzed a large national group of men. Rather than relying on sleep diaries, they used wrist-worn tracking devices over a week to pinpoint each man&#8217;s sleep midpoint \u2014 the mathematical middle of his night&#8217;s sleep. From there they sorted the men into early birds, intermediates, and night owls, and compared these body clocks against their morning testosterone levels, adjusting for age, weight, diabetes, income, education, total sleep, and exercise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The association was clear. Even with those other factors held equal, being a night owl was independently linked to a <strong>meaningfully lower morning testosterone<\/strong>. For scale, the difference associated with <em>when<\/em> a man slept was on a similar order to other well-known testosterone-drainers in the same analysis \u2014 comparable to aging by decades, and a significant fraction of the difference seen with established diabetes. Regular exercise, meanwhile, was associated with movement in the opposite, favourable direction.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is It Just the Timing of the Blood Test?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When these findings appeared on screen, the instinctive objection went round the room: of course night owls have lower morning testosterone \u2014 their internal clock peaks later, so an early blood draw simply catches them at their natural low point.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The researchers had anticipated this and tested it. They compared early birds tested in the morning against night owls whose blood was drawn in the <em>afternoon<\/em>, closer to when a night owl&#8217;s body would be expected to peak. Even then, the night owls&#8217; testosterone remained significantly lower. That makes the simplest explanation \u2014 an artefact of sampling time \u2014 unlikely, and points instead to a genuine difference in how much testosterone these men are producing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">An Important Caveat Before You Rearrange Your Life<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is observational research, and it deserves to be read as such. It measures men at a point in time and finds that chronotype and testosterone travel together; it cannot by itself establish that late nights <em>cause<\/em> the lower reading. The arrow could also run the other way, or a third factor could drive both \u2014 men who are already tired, low in mood or metabolically unwell may drift towards later nights rather than the reverse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Equally important: no trial has yet shown that shifting a night owl&#8217;s sleep earlier raises his testosterone. The mechanisms below are plausible and the advice that follows is safe, cheap and good for you regardless. But it is a reasonable bet rather than a proven treatment, and it should not be sold to you as one.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why the Midnight Oil Might Burn Testosterone<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If a night owl sleeps a solid eight hours \u2014 say from 2 AM to 10 AM \u2014 why might his system still suffer? Two mechanisms are proposed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Social jetlag<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In a healthy man, testosterone production is rhythmic: it begins rising as he falls asleep, builds overnight, and peaks in the early morning hours. When a natural night owl has to survive in a world built for early birds \u2014 dragging himself up for an early meeting, a commute, or the school run \u2014 he creates what researchers call social jetlag. The forced early wake-up truncates sleep at exactly the point in the cycle when production is highest. He is, in effect, switching off the factory mid-shift.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Too little daylight<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Waking later shifts life indoors and cuts total outdoor light exposure. Less direct daylight on the skin and eyes disrupts the master clock in the brain that governs the hormonal cascade controlling testosterone. When that clock drifts, the downstream signal drifts with it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What This Means in the Clinic<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When we evaluate younger men with borderline low-testosterone symptoms, the standard approach is to look for physical causes \u2014 screening for metabolic syndrome, measuring weight, running cholesterol and blood sugar panels. This work adds a question worth asking that many of us skip: what does your week actually look like, and when do you sleep?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider a man in his mid-thirties who eats well, trains daily, and shows a borderline-low testosterone level. Telling him to train harder, or moving straight to lifelong hormone therapy, may both be the wrong response. If he is living in chronic circadian misalignment, that is worth addressing first \u2014 it costs nothing, it is good for his health in several other ways, and if his numbers improve he has avoided a treatment he did not need. If they do not improve, nothing has been lost and the conversation about treatment can proceed properly. That is the logic of trying it, and it is worth being clear that it is a sensible sequence rather than a guaranteed fix.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Protect Your Hormonal Rhythm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you are a natural night owl, do not try to transform into a 4:30 AM fitness guru overnight. Your genetics shape your baseline preference. But you can take deliberate steps to reduce circadian strain.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Protect the tail end of your sleep<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If your work and family life genuinely allow a later schedule, protect it. If you go to bed late, try not to let alarms and interruptions shatter the early-morning hours, since that truncated window is where the proposed hormonal cost sits. Consistency matters more than perfection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Anchor your morning with bright light<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Light is the strongest signal your master clock responds to. When you get up, seek bright natural daylight for ten to fifteen minutes. This shuts down melatonin, sharpens the morning cortisol curve, and anchors your circadian rhythm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Cut the late-night screen glare<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you are awake past midnight, your brain should not be told it is noon. Bright light from phones, tablets and monitors delays sleep onset and degrades sleep quality. Use night settings, or switch off bright screens an hour before your target bedtime.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Ask whether it is really sleep timing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Loud snoring, waking unrefreshed, or daytime sleepiness despite adequate hours point towards obstructive sleep apnea, which independently suppresses testosterone and carries cardiovascular risk of its own. That is a diagnosis worth making rather than a habit to adjust, and a sleep study is the way to settle it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Respect the Clock<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Testosterone is not a static number written in stone. It responds to how the body is treated, and the fundamental rhythms of light, dark and sleep are part of that picture alongside metabolic and sexual health.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you have been doing everything right in the gym and the kitchen but still battle unexplained fatigue, low drive, or poor recovery, your schedule is worth an honest look \u2014 and so is a proper assessment, because a symptom list on its own does not distinguish low testosterone from the several other conditions that produce exactly the same complaints.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One practical note before you act on any of this: a low reading on its own is not a diagnosis. Testosterone deficiency means a low level confirmed on <strong>two separate early-morning blood tests<\/strong> together with genuine symptoms, and plenty of men with a single low afternoon result turn out to be entirely normal when tested properly \u2014 which is part of why sleep timing belongs in this conversation at all. Whatever the result, testosterone bought online or from an unregulated source is a bad idea: neither the dose nor the contents can be relied upon, and nobody is checking your blood count or your prostate while you take it. If you are experiencing symptoms of low testosterone \u2014 fatigue, low libido, brain fog, or poor recovery \u2014 and would like a comprehensive evaluation that looks at the whole picture, including your sleep and lifestyle, Dr. Soarawee Weerasopone offers specialist men\u2019s health consultations at Bangkok Hospital Headquarters. <a href=\"https:\/\/www.bangkokhospital.com\/en\/bangkok\/doctor\/dr-soarawee-weerasopone-2\" target=\"_blank\" rel=\"noreferrer noopener\">Book a Consultation<\/a>. Consultations are also available at Samitivej Sriracha Hospital, Chonburi \u2014 please call the department line on <a href=\"tel:0880221445\">088-022-1445<\/a>. Questions about the cost of consultation or testing should go to the hospital directly \u2014 for Bangkok Hospital, by email to <a href=\"mailto:bhquro@bdms.co.th\">bhquro@bdms.co.th<\/a>. You can also read how <a href=\"https:\/\/drsoaraweeurology.com\/services\/testosterone-replacement-therapy\/\">testosterone replacement therapy<\/a> is assessed and monitored in practice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bangkok Hospital Telemedicine is available for patients who cannot attend in person, including international patients \u2014 arrange it in advance by email to the Urology department at <a href=\"mailto:bhquro@bdms.co.th\">bhquro@bdms.co.th<\/a>. Sleep, schedule and symptoms are exactly the kind of history that works well by video; the blood tests that confirm or exclude low testosterone are done in person, and they need to be taken in the morning. Samitivej Sriracha is in-person only.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Can staying up late really lower my testosterone?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Research shows that having a night-owl chronotype is independently associated with lower testosterone, even in men who get a full night&#8217;s sleep and have otherwise healthy lifestyles. The association held after accounting for age, weight, diabetes, exercise, and total sleep duration, suggesting that <em>when<\/em> you sleep may matter for hormone health, not just how long. This is observational evidence, so it establishes a link rather than proving that late nights are the cause.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is lower morning testosterone in night owls just due to blood-test timing?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is a reasonable concern, and the researchers tested it. They compared night owls whose blood was drawn in the afternoon, closer to their natural peak, against early birds tested in the morning. The night owls still showed significantly lower testosterone, which makes sampling time an unlikely explanation for the whole difference.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why might a late sleep schedule harm testosterone even with enough sleep?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Two mechanisms are proposed. First, social jetlag: when night owls are forced to wake early for work or family, sleep is cut off at the point where testosterone production naturally peaks in the early morning. Second, waking later reduces daylight exposure, which disrupts the brain&#8217;s master clock controlling hormone production. Together these could throw the system out of sync even when total sleep hours are adequate.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Will fixing my sleep schedule raise my testosterone?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It may, but this has not been tested in a trial, so nobody can promise it. What can be said is that improving sleep timing and daylight exposure is safe, free, and good for cardiovascular and metabolic health regardless of what it does to your hormone level. It is a sensible first step for a younger man with borderline-low testosterone and no other cause found, rather than a proven treatment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What are the best habits for protecting testosterone if I&#8217;m a night owl?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You do not have to force yourself to become an early riser. Focus on three things: protect the tail end of your sleep so the early-morning hours are not cut short, get ten to fifteen minutes of bright natural light soon after waking to anchor your body clock, and avoid bright screens for an hour before bed. Also consider whether snoring or unrefreshing sleep points to obstructive sleep apnea, which is a medical diagnosis rather than a habit and independently lowers testosterone.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I discuss this by video consultation?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Bangkok Hospital Headquarters offers a Telemedicine service, arranged in advance by emailing the Urology department at bhquro@bdms.co.th. Sleep pattern, symptoms and existing test results are well suited to a video consultation, and it is a practical way to decide what testing is worth doing. Blood tests need to be done in person and in the morning, since testosterone varies through the day. Samitivej Sriracha Hospital is in-person only.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"MedicalWebPage\",\n      \"@id\": \"https:\/\/drsoaraweeurology.com\/2026\/09\/29\/night-owl-chronotype-low-testosterone\/#webpage\",\n      \"url\": \"https:\/\/drsoaraweeurology.com\/2026\/09\/29\/night-owl-chronotype-low-testosterone\/\",\n      \"name\": \"The Night Owl Penalty: How Your Sleep Schedule Is Quietly Draining Your Testosterone\",\n      \"headline\": \"The Night Owl Penalty: How Your Sleep Schedule Is Quietly Draining Your Testosterone\",\n      \"description\": \"Research presented at AUA 2026 links a night-owl chronotype with lower testosterone independently of sleep duration. What the finding shows, what it cannot show, and the sleep and daylight habits worth adopting anyway.\",\n      \"inLanguage\": \"en\",\n      \"datePublished\": \"2026-09-29\",\n      \"dateModified\": \"2026-08-30\",\n      \"lastReviewed\": \"2026-08-30\",\n      \"specialty\": \"https:\/\/schema.org\/Urologic\",\n      \"medicalAudience\": { \"@type\": \"MedicalAudience\", \"audienceType\": \"Patient\" },\n      \"isPartOf\": { \"@id\": \"https:\/\/drsoaraweeurology.com\/#website\" },\n      \"author\": { \"@id\": \"https:\/\/drsoaraweeurology.com\/#physician\" },\n      \"reviewedBy\": { \"@id\": \"https:\/\/drsoaraweeurology.com\/#physician\" },\n      \"publisher\": { \"@id\": \"https:\/\/drsoaraweeurology.com\/#physician\" },\n      \"disambiguatingDescription\": \"The research described is observational and cross-sectional: it demonstrates an association between chronotype and testosterone, not that late sleep timing causes a lower level, and reverse causation or a shared third factor cannot be excluded. 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These are safe and beneficial for cardiovascular and metabolic health, and are a reasonable first step in a younger man with a borderline result and no other cause identified, but they have not been shown in a trial to raise testosterone.\"\n      },\n      \"disambiguatingDescription\": \"Testosterone obtained online or from unregulated sources carries unknown dose and contents and bypasses the haematocrit and prostate monitoring that treatment requires.\"\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/drsoaraweeurology.com\/2026\/09\/29\/night-owl-chronotype-low-testosterone\/#faq\",\n      \"isPartOf\": { \"@id\": \"https:\/\/drsoaraweeurology.com\/2026\/09\/29\/night-owl-chronotype-low-testosterone\/#webpage\" },\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can staying up late really lower my testosterone?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Research shows that having a night-owl chronotype is independently associated with lower testosterone, even in men who get a full night's sleep and have otherwise healthy lifestyles. The association held after accounting for age, weight, diabetes, exercise, and total sleep duration, suggesting that when you sleep may matter for hormone health, not just how long. This is observational evidence, so it establishes a link rather than proving that late nights are the cause.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Is lower morning testosterone in night owls just due to blood-test timing?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"This is a reasonable concern, and the researchers tested it. They compared night owls whose blood was drawn in the afternoon, closer to their natural peak, against early birds tested in the morning. The night owls still showed significantly lower testosterone, which makes sampling time an unlikely explanation for the whole difference.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why might a late sleep schedule harm testosterone even with enough sleep?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Two mechanisms are proposed. First, social jetlag: when night owls are forced to wake early for work or family, sleep is cut off at the point where testosterone production naturally peaks in the early morning. Second, waking later reduces daylight exposure, which disrupts the brain's master clock controlling hormone production. 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Protect the tail end of your sleep so the early-morning hours are not cut short, get ten to fifteen minutes of bright natural light soon after waking to anchor your body clock, and avoid bright screens for an hour before bed. Also consider whether snoring or unrefreshing sleep points to obstructive sleep apnea, which is a medical diagnosis rather than a habit and independently lowers testosterone.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can I discuss this by video consultation?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Yes. Bangkok Hospital Headquarters offers a Telemedicine service, arranged in advance by emailing the Urology department at bhquro@bdms.co.th. Sleep pattern, symptoms and existing test results are well suited to a video consultation, and it is a practical way to decide what testing is worth doing. Blood tests need to be done in person and in the morning, since testosterone varies through the day. Samitivej Sriracha Hospital is in-person only.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Disclaimer:<\/strong> This content is written and reviewed by Dr. Soarawee Weerasopone, a board-certified urologist at Bangkok Hospital Headquarters. It is intended for educational purposes only and does not constitute medical advice. Medical advice, diagnosis and prescriptions are not provided through personal messaging channels or social media. Always consult a qualified healthcare professional before starting any medical treatment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Could your bedtime be quietly draining your testosterone? Dr. Soarawee Weerasopone, urologist at Bangkok Hospital, explains surprising AUA 2026 research showing that being a night owl can lower a man&#8217;s testosterone \u2014 and how to protect your hormonal health.<\/p>","protected":false},"author":185281453,"featured_media":10544,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"Being a night owl may quietly lower a man's testosterone \u2014 even with a full night's sleep. A Bangkok urologist explains the chronotype-testosterone link from AUA 2026 and how to protect your hormones.","jetpack_seo_html_title":"Night Owls & Low Testosterone: How Sleep Timing Hurts Men | Dr. Soarawee","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1363],"tags":[],"class_list":["post-10435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mens-health"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":false,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pgZdrK-2Ij","jetpack_featured_media_url":"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/05\/The-Night-Owl-Penalty.jpg?fit=1200%2C630&ssl=1","_links":{"self":[{"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/posts\/10435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/users\/185281453"}],"replies":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/comments?post=10435"}],"version-history":[{"count":8,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/posts\/10435\/revisions"}],"predecessor-version":[{"id":11853,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/posts\/10435\/revisions\/11853"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/media\/10544"}],"wp:attachment":[{"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/media?parent=10435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/categories?post=10435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/ja\/wp-json\/wp\/v2\/tags?post=10435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}