ExcelMale
Menu
Home
What's new
Latest activity
Forums
New posts
Search forums
What's new
New posts
Latest activity
Videos
Lab Tests
Doctor Finder
Buy Books
About Us
Men’s Health Coaching
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Monthly Variations in Testosterone Levels: Results from 8,367 Middle-Aged Men
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Nelson Vergel" data-source="post: 193501" data-attributes="member: 3"><p><strong><span style="font-size: 18px">Monthly Variations in Serum Testosterone Levels: Results from 8,367 Middle-Aged Men </span></strong></p><p></p><p>Jun Ho Lee 1, Sung Won Lee 2</p><p></p><p>J Urol. 2020 Dec 22;101097JU0000000000001546. doi: 10.1097/JU.0000000000001546. Online ahead of print.</p><p></p><p>Abstract</p><p>Purpose: We investigated whether serum testosterone levels vary monthly in middle-aged men.</p><p></p><p>Materials and methods: A total of 8,367 middle-aged men who participated in a police officer urological health screening program at National Police Hospital were included. The participants were applicants. Total testosterone was measured early in the morning. Additionally, data on age, waist circumference, blood pressure, and levels of fasting blood sugar, triglycerides, and high-density lipoprotein were collected as confounders. We also collected the monthly temperature and daylight duration in Seoul. We compared the mean testosterone level in each month before and after adjusting for confounders.</p><p></p><p>Results: Testosterone showed a monthly pattern, with a nadir (lowest concentration) in May (4.4 ng/mL or 440 ng/dL) and a peak in January (6.0 ng/mL or 600 ng/dL). The mean testosterone level differed significantly across the months (p <0.001). <strong>After adjusting for confounders, testosterone still showed a monthly pattern, with a nadir in May (4.5 ng/mL) and a peak in January (6.1 ng/mL). The trendlines of testosterone and the daylight duration in each month suggested a negative relationship, and the trendlines of testosterone and outdoor temperature suggested a negative relationship.</strong></p><p><strong></strong></p><p><strong></strong></p><p><strong>[ATTACH=full]14226[/ATTACH]</strong></p><p><strong>[ATTACH=full]14227[/ATTACH]</strong></p><p></p><p></p><p>Conclusions: The serum testosterone levels varied monthly, and this variation seems to be related to outdoor temperature and daylight duration. Our results warrant further investigation.</p><p></p><p>Keywords: Daylight; Monthly variation; Temperature; Testosterone.</p><p></p><p>Note: This study infers that men have higher testosterone in darker & colder months. Also note that the highest testosterone level was 600 ng/dL.</p></blockquote><p></p>
[QUOTE="Nelson Vergel, post: 193501, member: 3"] [B][SIZE=18px]Monthly Variations in Serum Testosterone Levels: Results from 8,367 Middle-Aged Men [/SIZE][/B] Jun Ho Lee 1, Sung Won Lee 2 J Urol. 2020 Dec 22;101097JU0000000000001546. doi: 10.1097/JU.0000000000001546. Online ahead of print. Abstract Purpose: We investigated whether serum testosterone levels vary monthly in middle-aged men. Materials and methods: A total of 8,367 middle-aged men who participated in a police officer urological health screening program at National Police Hospital were included. The participants were applicants. Total testosterone was measured early in the morning. Additionally, data on age, waist circumference, blood pressure, and levels of fasting blood sugar, triglycerides, and high-density lipoprotein were collected as confounders. We also collected the monthly temperature and daylight duration in Seoul. We compared the mean testosterone level in each month before and after adjusting for confounders. Results: Testosterone showed a monthly pattern, with a nadir (lowest concentration) in May (4.4 ng/mL or 440 ng/dL) and a peak in January (6.0 ng/mL or 600 ng/dL). The mean testosterone level differed significantly across the months (p <0.001). [B]After adjusting for confounders, testosterone still showed a monthly pattern, with a nadir in May (4.5 ng/mL) and a peak in January (6.1 ng/mL). The trendlines of testosterone and the daylight duration in each month suggested a negative relationship, and the trendlines of testosterone and outdoor temperature suggested a negative relationship. [ATTACH type="full" alt="testosterone per month and sunlight.jpg"]14226[/ATTACH] [ATTACH type="full" alt="testosterone month outdoor temperature.jpg"]14227[/ATTACH][/B] Conclusions: The serum testosterone levels varied monthly, and this variation seems to be related to outdoor temperature and daylight duration. Our results warrant further investigation. Keywords: Daylight; Monthly variation; Temperature; Testosterone. Note: This study infers that men have higher testosterone in darker & colder months. Also note that the highest testosterone level was 600 ng/dL. [/QUOTE]
Insert quotes…
Verification
Post reply
Share this page
Facebook
Twitter
Reddit
Pinterest
Tumblr
WhatsApp
Email
Share
Link
Sponsors
Forums
Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Monthly Variations in Testosterone Levels: Results from 8,367 Middle-Aged Men
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top