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Testosterone — new discoveries about the male hormone

Testosterone — new discoveries about the male hormone
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For many years, testosterone has been seen as a metaphor for aggression. The reality is that there is no big connection between testosterone and aggression.

This documentary takes a look at studies that show how subtle the hormone’s effects actually are. Men with a high amount of testosterone are seen as violent and competitive.

But is that true? In the past few years, we’ve seen the image of the sex hormone changing. Testosterone is the primary sex hormone and anabolic steroid in male.

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The hormone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass.

Popular on Amazon
Everlywell At-Home Testosterone Collection Kit for Men, Measures Total Testosterone Level for Accurate Results from CLIA-Certified Labs, Ages 18 Plus
  • TOTAL TESTOSTERONE: Measures your total T level, the key hormone that affects energy, muscle mass, libido, vitality and more to help explain changes in performance and overall wellbeing.
  • SUPPORT SYMPTOM RELIEF: Designed to help you understand potential hormone-related causes of symptoms such as fatigue, low sex drive, reduced strength, mood changes and hair loss.
  • EASY, AT-HOME SAMPLE COLLECTION: Everything you need is included in one collection kit. Just collect a small urine and blood sample and return by mail with the provided included shipping label. No clinic visits or appointments required.
  • FAST, ACTIONABLE: Get a clear picture in an easy-to-read dashboard usually within 5-7 business days after your sample is received by the lab, so you can make confident choices, share with your doctor and prioritize your health.
  • CLIA-CERTIFIED LAB ANALYSIS: Test results are reviewed by board-certified physicians and analyzed in CLIA-certified labs that meet federal standards for laboratory testing to ensure accuracy, reliability and clinically-backed insights. Not Available in NY

Decrease in testosterone can lead to physical changes including increased body fat, decreased strength, decreased mass of muscles, fragile bones, and more.

Also popular on Amazon
Everlywell At-Home Men's Health Test Collection Kit, Measures 4 Key Hormones in Men for Accurate Results from a CLIA-Certified Lab Within Days, Ages 18 Plus
  • COMPREHENSIVE TESTING: Measures 4 key hormones including cortisol, free testosterone, DHEA and estradiol to help offer an overview and greater insight into male hormonal balance and overall health, all from the comfort of your home.
  • SUPPORTS HEALTH INSIGHTS: This Everlywell Men’s Health Test is designed to help you explore hormone-related factors that may be associated with symptoms like low energy, reduced libido, changes in muscle mass, mood changes, or stress.
  • EASY, AT-HOME SAMPLE COLLECTION: Everything you need is included in one collection kit. Just collect a small blood sample and/or saliva sample and return by mail with the provided included shipping label. No clinic visits or appointments required.
  • FAST, ACTIONABLE RESULTS: Receive digital results in an easy-to-read dashboard usually within 5-7 business days after your sample is received by the lab, so you can make confident choices, share with your doctor and prioritize your health.
  • CLIA-CERTIFIED LAB ANALYSIS: Test results are reviewed by board-certified physicians and analyzed in a CLIA-certified lab that meets federal standards for laboratory testing to ensure accuracy, reliability and clinically-backed insights.
Also popular on Amazon
Sale
EqualDx 3-in-1 Androgen Test – at-Home Sample Collection Kit | Measure Total T, Free (Active) T & SHBG for Wellness Tracking | CLIA Lab Tested | Painless Collection
  • Comprehensive Androgen Profile –This at-home collection kit rovides a detailed view of androgen-related hormones: Total T, Free Androgens, and SHBG (sex hormone-binding globulin) to support wellness tracking and overall health awareness.
  • Track Over Time – Ideal for adults who want to track androgen-related markers over time as part of a wellness routine, fitness lifestyle check-ins, or aging/wellness monitoring.
  • Painless, At-home Collection – Easy at-home collection with a true serum sample (not dried blood spots) for a comfortable experience with accuracy.
  • Fast, CLIA-Certified Lab Results – Receive results from a CLIA-certified facility, ensuring reliable analysis of your health, typically in 2- 5 business days once the lab receives your sample.
  • Designed for Adult Use Only – For adults 18+. This collection kit supports laboratory processing only and is not a point-of-care or self-diagnostic device. Not available in New York. Ships in discreet packaging to support user privacy
Also popular on Amazon
Sale
Simple HealthKit At-Home Men’s Health Test - Comprehensive Hormone & Protein Panel for Males - General Wellness Testing Sample Collection Kit - Fast Lab Results
  • Comprehensive Men’s Health Test: An easy-to-use male general wellness test with simple, fast, and private results. One convenient test provides a clear picture of men’s levels of 7 key hormones and proteins essential for health and overall wellness. Test measures: Estradiol, Cortisol, DHEA-S, SHBG, ALB, Total Testosterone, and Free Testosterone.
  • Fast, Simple, Private: Getting tested has never been easier. Collect your blood sample from the comfort of home and use the enclosed prepaid FedEx mailer to send it to our lab for testing. Once the sample is received by our lab, your online results are typically available within 2 - 5 business days.
  • Men’s Health Test Results: Your healthcare provider may use hormone and protein test results to help monitor or manage symptoms related to imbalances.
  • Physician Approved, HSA / FSA Eligible, Test Intended for Males 18+ Only. Not Available in NY. Lab processing is included in your test purchase. Lab is CLIA Certified and CAP Accredited.
  • Results delivered through a HIPAA-compliant online portal.
Also popular on Amazon
Sale
Simple HealthKit At-Home Men’s Total Testosterone Test - Measures Total T Level for Males - Hormone Testing Sample Collection Kit - Fast Lab Results
  • Men’s Test for Total Testosterone: An easy-to-use men’s total testosterone test with simple, fast, and private results. One convenient test provides a clear picture of men’s total T level, a hormone which plays an important role in regulating muscle mass, body fat, energy, mood, and sex drive / libido.
  • Fast, Simple, Private: Getting tested has never been easier. Collect your blood sample from the comfort of home and use the enclosed prepaid FedEx mailer to send it to our lab for testing. Once the sample is received by our lab, your online results are typically available within 2 - 5 business days.
  • Total Testosterone Results: Your healthcare provider may use total testosterone test results to help monitor or manage symptoms related to low or high testosterone levels.
  • Physician Approved, HSA / FSA Eligible, Test Intended for Males 18+ Only. Not Available in NY. Lab processing is included in your test purchase. Lab is CLIA Certified and CAP Accredited.
  • Results delivered through a HIPAA-compliant online portal.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply. Prices as of November 9, 2026 3:49 am GMT+0530.
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