Testosterone Lab Ranges: What Your Results Mean
What testosterone lab ranges really tell you: the 300 ng/dL cutoff, why timing matters, how labs differ, and how to read your numbers after 40.
Longevity News
Beets Health Benefits: What the Research Shows
Beets health benefits explained: blood pressure, exercise stamina, heart health and brain blood flow, plus who should be careful and how to eat them.
Sirtuins: What They Do and How to Support Them After 45
Sirtuins are seven NAD+-dependent enzymes tied to aging. See what the human research says about supplements, exercise and testing, and what to do next.
DHEA Dose for Adults: What Studies Use and How to Test First
No official DHEA dose exists for adults. See what studies use (25 to 50 mg), who should avoid it, and how blood testing sets a safer starting point.
HRT After Menopause: What Changes After the 10-Year Window
Learn when HRT after menopause has a favorable benefit-risk balance, how later starts change risk, and what to discuss with your clinician about timing.
High Lp(a): What 50 mg/dL Means for Your Next Steps
Learn why 50 mg/dL is commonly considered high, how Lp(a) tests differ, and what to ask a clinician about cardiovascular risk and next steps.
DHEA for Women in Perimenopause and Postmenopause: Vaginal Use Leads
For perimenopausal and postmenopausal women, prescription vaginal DHEA has the clearest evidence for painful sex; oral use remains uncertain overall.
Tesamorelin Benefits in HIV Lipodystrophy: 1.2 kg Lean Mass
Tesamorelin trials in HIV lipodystrophy report 1.0–1.2 kg less trunk fat and 1.2–1.4 kg more lean mass. See why lab monitoring matters during treatment.
Zone 2 Training After 40: Find Your Pace, With or Without Lab Data
Learn how to find Zone 2 intensity with the talk test, heart rate, and effort scale, then use lab and wearable markers to tailor training after 40.
Urolithin A Benefits: Mitophagy Signals, Not Proof of Longer Life
See how urolithin A may support mitophagy, what human trials found for muscle performance, and how diagnostics can guide supplement use and outcome tracking.
APOE4 Diet: What the 53% MIND Finding Can Actually Tell You
Explore what APOE4 research says about MIND and Mediterranean eating, omega 3s, food swaps, supplements, and testing with personalized coaching.
HRT Alternatives: New Neurokinin Drugs and What to Ask Your Clinician
Compare HRT alternatives supported by evidence, including neurokinin receptor antagonists and behavioral therapies, then plan questions for your clinician.