Fatigue

Studies touching on tiredness and low energy, and the exercise and nutrient factors linked to them.

2Studies

2Human studies

2026Most recent

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…

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Testosterone Therapy in Men in Their 40s: A Narrative Review of Indications, Outcomes, and Mid-Term Safety.

Cureus2025

Narrative ReviewHuman

This narrative review looked at the use, benefits, and safety of testosterone replacement therapy (TRT) in men aged 40-49 with low testosterone. It synthesized findings from randomized controlled trials and…

Brain Fog Endocrine Fatigue

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