Studies on protecting and improving sperm, count, movement, shape, and DNA integrity, through weight, diet, exercise, heat exposure, and the everyday factors that actually move the needle.
62 human studies · newest 2026
Training, protein, and supplement research on building and keeping muscle and strength, from creatine timing to how older men hold onto lean mass.
35 human studies · newest 2026
What the evidence says raises or protects testosterone naturally, sleep, strength training, vitamin D, losing excess weight, and, just as usefully, what it says does not.
28 human studies · newest 2026
Losing fat and keeping it off, diet patterns, fasting, protein, and training, plus how body weight ties back to hormones and fertility.
26 human studies · newest 2026
The vascular and metabolic factors behind a strong heart in men, blood pressure, cholesterol, and inflammation, and the diet and exercise that shift them.
20 human studies · newest 2026
How sleep and male health feed each other: how much you get, how you train, and what it does to hormones, recovery, and blood sugar.
10 human studies · newest 2026
Aging well: the muscle, metabolic, and lifestyle factors associated with a longer, stronger healthspan in men.
10 human studies · newest 2026
The inputs behind day-to-day energy and stamina, exercise, sleep, and the nutrients most closely tied to fatigue and vitality.
6 human studies · newest 2026