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Weight Loss

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

26Studies

26Human studies

2026Most recent

11Countries

Testosterone Replacement Therapy as a Potential Strategy to Preserve Lean Mass in Men With Persistently Low Serum Testosterone Receiving GLP-1 Receptor Agonists: A Narrative Review.

Cureus2026

Narrative ReviewHuman

This is a narrative review (an expert summary of existing research, not a new experiment) asking whether testosterone replacement therapy (TRT) could help men with low testosterone hold onto muscle…

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Late-onset and functional hypogonadism in aging men: an integrated perspective on hormonal, sleep, and metabolic dimensions.

Journal of endocrinological investigation2026

Narrative ReviewHuman

This review looked at how aging affects men's hormones, sleep, and metabolism, centering on two kinds of hypogonadism (when the testicles do not make enough testosterone, causing symptoms like low…

Aging Better Sleep Endocrine

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Impact of lifestyle and environmental factors on fertility.

Current opinion in urology2025

Narrative ReviewHuman

This review gathers recent evidence on what damages male fertility and how much of it can be undone. Smoking raises sperm DNA fragmentation (breaks in the genetic material inside sperm)…

Air pollution Alcohol Antioxidants

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