PrimeVital | Health & Fitness for Men Over 40

Man in his late 40s reviewing blood test results at a doctor's desk, black and white documentary photograph

Biological Age Calculator: What Your Blood Work Actually Reveals

Calculate your biological age from 9 routine blood test values using the clinically validated PhenoAge formula. See how your body's aging compares to your chronological age.

By PrimeVital Team9 min read

Latest

Man in his mid-40s performing a heavy barbell squat in a worn gym, black-and-white documentary photograph, Kodak Tri-X 400 grain, natural overhead light, unretouched

fitnessJun 22, 202614 min

Exercise and Testosterone: How to Train for Maximum T-Output in Men Over 40

Compound lifts raise testosterone more than any other exercise type. Learn which workouts raise T, how heavy to go, and why recovery matters most after 40.

Man in his mid-40s reviewing blood test results at a clinic desk, black-and-white documentary photograph, available window light, unretouched

healthJun 21, 202614 min

How to Increase Free Testosterone Naturally: The Protocol for Men Over 40

Most men test 'normal' on total testosterone but have low free T. This protocol targets both SHBG and production to raise the number that actually matters.

Middle-aged man sitting in a doctor's office reviewing lab results on paper, black-and-white documentary photograph, Leica M6, Tri-X 400, natural window light, unretouched

healthJun 19, 202614 min

Insulin Resistance and Low Testosterone: The Hidden Connection in Men Over 40

Insulin resistance and low testosterone reinforce each other in a cycle that accelerates aging. Here's what the research shows, how to measure both, and the protocol to break the cycle.

Man in his mid-40s examining supplement bottles at a pharmacy counter, black-and-white documentary photograph, natural window light, unretouched

healthJun 17, 202614 min

Zinc and Testosterone: What the Research Actually Says for Men Over 40

Zinc deficiency can halve testosterone in older men. Here's what the evidence shows, who actually needs to supplement, and the exact dosage that works.

Middle-aged man examining a whole Atlantic salmon at a fish market counter, black and white documentary photograph

supplementsJun 16, 202617 min

Omega-3 Fish Oil for Men Over 40: Dosage, Benefits, and What to Actually Buy

Omega-3 fish oil cuts cardiovascular risk, reduces joint pain, and supports testosterone in men over 40. Here's what the research says on dosage, form, and quality.

Man in his mid-40s sitting cross-legged on grass in an early morning park, eyes closed, barefoot, unretouched black-and-white documentary photograph

healthJun 15, 202614 min

How to Lower Cortisol Naturally: A Science-Based Protocol for Men Over 40

Cortisol suppresses testosterone and builds visceral fat. Seven evidence-based interventions produce measurable reductions in 4-6 weeks. Here is the protocol.

Topics

Fitness Nutrition Health Mental Health Longevity Supplements

PrimeVital — Evidence-Based Health and Fitness for Men Over 40