53 articles
What Is Testosterone? Functions, Production & Key Facts
How testosterone is made, what it does, and why it declines. Covers the HPG axis, free vs total T, and reference ranges.
Low Testosterone Symptoms: 15 Signs of Low T in Men
Physical, sexual, and mental symptoms of low testosterone. Learn which signs matter most and when to get tested.
12 Low Testosterone Signs Most Doctors Miss
Low T in women causes fatigue, low libido, brain fog, and muscle loss. These 12 symptoms get missed — most doctors don't test for them.
Testosterone After 30: Real Decline Rates by Age
The '1% per year' stat is wrong for most men — actual decline depends on 3 factors. Real rates by decade from 40+ years of study data.
Why 305 and 950 ng/dL Are Both 'Normal'
Lab ranges span a 3x difference and call it all 'normal.' Age-adjusted ranges, free T context, and when low-normal still needs treatment.
How to Test Testosterone: Timing, Panels & Cost
When to draw blood, what to order, where to get tested, and how much it costs. Step-by-step testosterone testing guide.
Total vs Free Testosterone: Which Matters More?
How testosterone binds to SHBG and albumin, why free T is often more important, and clinical scenarios where total and free diverge.
Free Testosterone Calculator: Vermeulen Equation
How to calculate free testosterone from total T, SHBG, and albumin -- which equation labs use, why values differ, and what numbers actually matter on TRT.
Read Your Testosterone Labs: 6 Key Markers
Your doctor spent 90 seconds on your results. Here's what total T, free T, SHBG, E2, and hematocrit actually mean for your protocol.
TRT vs Natural Testosterone Optimization: Which Path?
Compare testosterone replacement therapy with natural optimization methods. Understand benefits, risks, and when each approach works best.
PCOS and Testosterone: Why Free T Matters Most
60-80% of PCOS women have high androgens, but total T misses the picture. How insulin drives free T up and when PCOS women actually need T therapy.
Testosterone for Women: Benefits, Doses & Risks
Most doctors don't test women's testosterone — even when symptoms are textbook. Complete guide: optimal ranges, cream vs injection, and what 1-5mg/day does.
HRT vs TRT: What's the Difference?
HRT and TRT both involve hormones — but they target different problems. When to use which term, what's included, and why it matters for your treatment.
Testosterone and Anxiety in Women: Low T and Mood
Women with low testosterone are 2x more likely to develop anxiety and depression. Here's the biology behind it — and what actually helps.
Menopause Rage: Why It Happens & How HRT Fixes It
70% of perimenopausal women report irritability as their worst mood symptom. The estrogen-serotonin link, who HRT helps, and why SSRIs often miss.
HRT and Brain Fog: How Hormones Affect Memory
Menopause brain fog affects 60%+ of women. Starting HRT within 10 years of menopause may protect cognition. The timing matters more than the hormones.
Heart Palpitations in Perimenopause: Causes & HRT Fix
Up to 54% of perimenopausal women get heart palpitations. Here's what causes them, when to worry, and how HRT stops the racing-heart feeling fast.
HRT Cuts Hot Flashes 75%, SSRIs 45%
Hot flashes hit 80% of menopausal women. HRT cuts them ~75%, SSRIs ~45%. Here's what works, what to take, and how fast it kicks in.
HRT for Perimenopause Insomnia: Sleep Fixes
60% of perimenopausal women can't sleep. Progesterone 200mg at bedtime cuts wake-time 53%. Here's the dosing, labs, and fastest path to relief.
Does HRT Cause Weight Gain? 12-Year Data Says No
Menopause itself drives ~1.5 kg weight gain and a visceral-fat shift. HRT is weight-neutral to favorable — here's the real data and what helps.
HRT + Tirzepatide: 35% More Menopause Weight Loss
Postmenopausal women on HRT lost 19.2% of body weight on tirzepatide vs 14% without. Mayo Clinic Lancet data, who it's for, the clinic angle.
Menopause Hair Loss: Does HRT Actually Regrow It?
52% of postmenopausal women develop pattern hair loss. Here's what HRT, minoxidil, and spironolactone actually do, and the protocol that works.
HRT for Skin Aging: Collagen, Elasticity & What Estrogen Does
Women lose 30% of skin collagen in the first 5 years after menopause. How HRT rebuilds dermal collagen, who benefits, and what topical skincare cannot fix.
Perimenopause Timeline: 34 Signs + When to Start HRT
Perimenopause lasts 4-10 years. Here are the 34 symptoms most women miss, the STRAW stages, and when HRT helps the most.
Women's Testosterone Test: When & What to Order
Test on days 3-7 of your cycle or results are wrong. Which panels to order, optimal vs normal ranges, and how to read your results.
Testosterone for Joint Pain in Women: Research
71% of menopausal women get joint pain. New data shows testosterone protects cartilage, prevents muscle loss, and reduces arthralgia severity.
HRT Cuts Fracture Risk 24-34%: Bone Data
Women lose up to 20% of bone density in the 5-7 years after menopause. HRT cuts fracture risk 24-34%. When to start, DEXA timing, and what the data shows.
HRT and Breast Cancer Risk: What WHI Got Wrong
Estrogen-only HRT cuts breast cancer mortality 40%. Combination HRT adds 1 case per 50-200 women. The real numbers behind the WHI scare.
TRT and Heart Risk: TRAVERSE Trial Explained
The TRAVERSE trial studied 5,246 men on TRT for cardiovascular safety. Here's what the landmark study found and why the FDA removed its heart warning.
TRT and Prostate Cancer: The 80-Year Myth
The 1941 study that linked testosterone to prostate cancer was based on one patient. Here's what 80+ years of research actually shows.
Low T Tied to Prostate Cancer Progression: 924 Men
A 2026 MD Anderson study found low testosterone raised the odds of high-grade prostate cancer progression on active surveillance by 61 percent.
TRT and Sleep Apnea: Risks & How to Monitor
Does TRT cause sleep apnea? The evidence is more nuanced than guidelines suggest. Learn who's at risk and how to monitor.
FDA May Descheduling Testosterone: What It Means
An FDA panel recommends removing testosterone's Schedule III status and expanding access to age-related low T. Here's what changes and what to do now.
FDA Opens TRT Pathway for Low Libido in Men
On April 16, 2026, the FDA asked TRT manufacturers to seek approval for low libido in idiopathic hypogonadism. Here's what it means for patients now.
Testosterone Is Trending. Do You Actually Need TRT?
Testosterone is trending across media. Here's who qualifies for TRT, who should fix lifestyle first, and what the FDA actually changed.
Acrux Advances Female Testosterone to Phase 3 for HSDD
On April 30, 2026, Acrux announced Phase 3 trials for a transdermal female testosterone product for HSDD. Here is what it means and what is available now.
9,537 Men on TRT: Real-World Safety Data
A new 2026 cohort tracked 9,537 men on TRT for up to a year. Here's what the data says about hematocrit, libido, and who runs into trouble.
TRT, Heart Risk, and Prostate Cancer: 41-Trial Review
A new 2026 meta-analysis pooled 41 RCTs and 11,161 men. Here's what it actually says about TRT, heart attacks, strokes, and prostate cancer.
European TRT Verdict: AFib Signal, Heart Safety
Europe's testosterone expert panel issued its 2026 TRAVERSE verdict. Heart attacks reassuring, atrial fibrillation signal real. What changes for you.
Diabetes Triples Low T Risk: New NHANES Study
A 2026 NHANES analysis using gold-standard testosterone testing names diabetes, obesity, and isolation as the real drivers of low T in American men.
HRT Black Box Warning Removed: What Changed
The FDA removed black box warnings from HRT products in 2025. Prescriptions surged 184%. Here's what the science says and what to do next.
Generic Premarin Approved: Cheaper HRT in 2026
FDA approved the first generic conjugated estrogens in 30+ years. Prices, pharmacy availability, and whether to switch from brand Premarin.
TRT and Surgery Risk: What 13,000 Patients Reveal
A 2026 AAOS study of 13,000+ patients links pre-surgery TRT to higher infection, clot, and complication rates. What to tell your surgeon.
TRT and Bone Fractures: A New Risk Signal
A 2026 analysis links TRT to a 3-fold higher risk of shoulder fractures, echoing the TRAVERSE substudy. What it means for older men on testosterone.
Blood Test Flags Combined HRT Dementia Risk in Some
March 2026 JAMA study: high p-tau217 plus combined HRT linked to 4x dementia risk. What it means if you are on or considering hormone therapy.
Testosterone Therapy CV Safety in Women: 2026 Review
Feb 2026 systematic review of 2,628 women on testosterone: zero cardiovascular deaths in trials. What the data actually says — and where the gaps are.
Allegra and Pepcid for Menopause: What Doctors Say
The viral TikTok hack pairs an allergy pill with an acid reducer for hot flashes. Thin science, real relief for some, real trade-offs.
HRT and Frozen Shoulder in Menopause (2026 Data)
Frozen shoulder hits menopausal women 4x more than men. Duke and UCSF data show HRT may cut risk dramatically. Mechanism, evidence, and treatment guide.
Testosterone Cuts Glioblastoma Death Risk 38% in NIH Study
A May 2026 Cleveland Clinic study in Nature found men on testosterone supplements had 38% lower glioblastoma mortality. What it means for TRT users.
Testosterone in Women: 332-Patient Study Shows Energy, Mood Gains
A May 2026 study of 332 women on individualized testosterone therapy reports 84% energy gains and 90% quality-of-life improvement. What it means for HRT.
HRT and Migraines in Perimenopause and Menopause
Migraines often worsen in perimenopause. How transdermal estradiol, continuous progesterone, and the aura-stroke distinction change HRT decisions.
When to Start HRT in Menopause: Timing Hypothesis
Why HRT started within 10 years of menopause cuts mortality 39% and CVD risk 50%, but late starts can backfire. The timing-hypothesis evidence.
Elinzanetant (Lynkuet): The New Nonhormonal Hot Flash Drug
Lynkuet (elinzanetant) is the first dual NK1/NK3 antagonist for menopausal hot flashes. How it works, OASIS trial data, breast cancer use, cost, and HRT comparison.