Hormones & Vitality

A longevity physician reviews clinical evidence for biohacking trends. Learn how sleep, resistance training, and risk management compare to unproven therapies.

The FDA plans to include aging and longevity medicine in its FY 2027 regulatory science update, signaling closer scrutiny of unproven healthy aging claims.

A review of new military clinical guidelines reveals how sleep restriction, intense training, and physical stress complicate the diagnosis of low testosterone.

Learn the difference between normal male aging and clinical hormone deficiency. We review specific symptoms, correct testing protocols, and treatment limits.

Men's Health examined the medical limits of single hormone readings. Experts warn against treating one lab result as an accurate measure of male vitality.

A 2026 evidence review confirms that chronic psychological and occupational stress can raise LDL cholesterol, lower HDL, and increase metabolic syndrome risk.

A 2026 Ubie clinical review clarifies when a decline in semen volume is a normal part of male aging and when it signals broader hormonal or urologic issues.

A review of midlife health data reveals how consistent strength training, structured sleep, nutrition and clinical hormone evaluation support longevity after 40.

A 2026 Which? evidence review examines consumer claims about hormone balance, showing why healthy habits support metabolism but cannot replace medical care.

A January 2021 study shows one night of total sleep deprivation reduces muscle protein synthesis by 18 percent and alters cortisol and testosterone exposure.

A recent hospital study linked higher relative testosterone to lower suicide risk in older depressed men, highlighting the need for supervised clinical care.

An evidence review finds that oral DHEA supplements offer older men no meaningful gains in muscle, strength, or memory compared with a placebo.

Recent clinical data indicates that prior sports head injuries can cause lasting pituitary dysfunction, establishing a key diagnostic checkpoint for older men.

An evidence-led analysis comparing unproven NMN and high-dose testosterone protocols against medically supervised therapy and fitness for men over 45.

A recent whole-genome study identified eight mutational footprints driving prostate cancer. Learn how these genetic patterns relate to male hormone signaling.

A single low testosterone result is not a true diagnosis. Evaluations after 45 require repeat morning testing, symptom checks and free testosterone analysis.

A single low testosterone result is not a diagnosis. Learn how guidelines use repeated morning tests, physical symptoms and SHBG to identify a true deficiency.

A recent analysis reveals visceral fat may influence men's testosterone levels more than chronological age, highlighting the importance of metabolic health.

Fatigue and physical changes after 45 do not automatically mean low testosterone. Review the clinical steps to accurately diagnose and address your symptoms.

Recent clinical data questions testosterone therapy as a universal fix. Learn why targeted medical evaluation beats arbitrary hormone prescribing for aging men.

A critical breakdown of why the andropause label misleads men. We examine clinical data on age-related testosterone decline and proper symptom evaluation.

Current clinical data reveals how abdominal fat and daily habits impact male hormones after 45, clarifying when testosterone treatment is actually necessary.

A recent study of working men shows elevated cortisol precedes testosterone drops by two to four weeks, outlining a biological timeline for occupational stress.

A breakdown of the University of Oulu study exploring how habitual coffee consumption associates with metabolic markers, body fat and complex male hormone patterns.

A 2026 study reveals that visceral belly fat suppresses testosterone more strongly than chronological age or BMI in men between 20 and 59.

A narrative review links testosterone therapy to atrial fibrillation risk, suggesting mid-range hormone targets are safer than upper limits for men over 45.

A 2026 NHS trial published in The Lancet Oncology demonstrates that supervised exercise significantly reduces fatigue and quality of life decline in men on ADT.

The U.S. military briefly mandated testosterone screening for troops over 30 before rescinding it. Learn why symptom-based diagnosis remains the standard.

Testosterone replacement therapy is a medical decision, not an anti-aging shortcut. Learn the real benefits, risks, and monitoring required for men over 45.