Browse by Benefit 9 benefits

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.

119 human studies · newest 2026

• Lifestyle factors and prevalence of semen abnormalities among men undergoing infertility evaluation at oak specialist hospital: A retrospective cohort study.
• Ozone exposure and semen quality in low-income men with unhealthy behaviours in Foshan, China: a case-control study.
• Occupational Heat Exposure and Fertility Stress as Independent Factors of Low Semen Quality: A Multidimensional Analysis.

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.

86 human studies · newest 2026

• Endothelial Sirtuins and Mitochondrial Function Are Associated With Testosterone Status: Implications for Accelerated Vascular Aging in Middle-Age and Older Men With Low Testosterone.
• Cross-Sectional Association of Time Spent Outdoors With Serum Testosterone: Results From the National Health and Nutrition Examination Survey.
• Vitamin D Adequacy Conditions the Prolactin-Suppressive Effect of Metformin in Men Receiving Prolactin-Elevating Medications.

Training, protein, and supplement research on building and keeping muscle and strength, from creatine timing to how older men hold onto lean mass.

50 human studies · newest 2026

• Lifetime Endurance Physical Activity Is Related to Better Cardiometabolic Profile but May Be Insufficient to Preserve Muscle Strength and Power in Middle Aged and Older Men.
• Creatine supplementation in young men under resistance versus non-resistance training: a systematic review and meta-analysis of strength, performance, and lean mass.
• Acute metabolic and molecular responses to sprint interval versus moderate-intensity continuous exercise in healthy young men.

Losing fat and keeping it off, diet patterns, fasting, protein, and training, plus how body weight ties back to hormones and fertility.

34 human studies · newest 2026

• Effect of Different Modes of High Intensity Interval Training on Appetite-Related Hormones, Appetite Perception, and Anthropometric Measures in Overweight and Obese Men: A Randomized Controlled Trial.
• Scaled Testosterone: A Novel Metric to Calibrate Serum Testosterone and SHBG in Men
• Increasing plant protein sources in the diet modulates gut microbiota and tryptophan metabolism in men at cardiometabolic risk.

The vascular and metabolic factors behind a strong heart in men, blood pressure, cholesterol, and inflammation, and the diet and exercise that shift them.

33 human studies · newest 2026

• Lifetime Endurance Physical Activity Is Related to Better Cardiometabolic Profile but May Be Insufficient to Preserve Muscle Strength and Power in Middle Aged and Older Men.
• Endothelial Sirtuins and Mitochondrial Function Are Associated With Testosterone Status: Implications for Accelerated Vascular Aging in Middle-Age and Older Men With Low Testosterone.
• High triglyceride-glucose index and changes in triglyceride-glucose index are associated with an increased risk of hypogonadism in middle-aged Taiwanese men: a retrospective longitudinal study.

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.

28 human studies · newest 2026

• Effects of unsupervised campus HIIT on fitness and sleep in sedentary male students: a randomized controlled trial.
• Lower fat-free mass is independently linked to restless legs syndrome in men: a cross-sectional PSG-BIA study.
• Acute impairments in glucose tolerance following one night of partial sleep restriction are not rescued by moderate-intensity walking in young men.

Aging well: the muscle, metabolic, and lifestyle factors associated with a longer, stronger healthspan in men.

23 human studies · newest 2026

• Lifetime Endurance Physical Activity Is Related to Better Cardiometabolic Profile but May Be Insufficient to Preserve Muscle Strength and Power in Middle Aged and Older Men.
• Endothelial Sirtuins and Mitochondrial Function Are Associated With Testosterone Status: Implications for Accelerated Vascular Aging in Middle-Age and Older Men With Low Testosterone.
• Moderate Wine Consumption, Defined by the Mediterranean Diet, Is Associated With Delayed Biological Aging in Men From the Moli-sani Study.

The inputs behind day-to-day energy and stamina, exercise, sleep, and the nutrients most closely tied to fatigue and vitality.

11 human studies · newest 2026

• Comparative Efficacy and Pharmacokinetic Parameters of Micronized Creatine Monohydrate (KleanCREATINE™) in Active Men: A Randomized, Controlled Clinical Study.
• Comparative effects of combined aerobic exercise-based interventions on metabolic, cardiovascular, and inflammatory markers in adult men: a systematic review and meta-analysis.
• Late-onset and functional hypogonadism in aging men: an integrated perspective on hormonal, sleep, and metabolic dimensions.

Peer-reviewed research concerning thermotolerance, summarized and appraised in plain language with every source cited.

1 human study · newest 2020

• Heat acclimation-induced intracellular HSP70 in humans: a meta-analysis.