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PeakMetrics / Fact Checks

Health & medicine fact checks

Explore claims publishers have checked about health & medicine. Read their original ratings and follow the evidence.

13,666 published reviews in this topic

The Healthy Indian ProjectHealth & medicine

wearing tight underwear can reduce sperm count by 40%

Publisher’s rating: Half True

Research from related reporting says tight underwear may raise scrotal temperature and potentially lower sperm count over time, but the supplied excerpts do not establish a 40% reduction. Another source says tight underwear can increase scrotal temperature and damage sperm, without quantifying the effect.

Health DialoguesHealth & medicine

Drinking Lemon Water Decrease Wrinkles And Blemishes

Publisher’s rating: Misleading

The review says there is no scientific evidence or medical consensus that drinking lemon water reduces wrinkles or blemishes. It notes that cited research concerns mice, topical applications, or citrus mixtures rather than drinking lemon water. It also reports that hydration may support skin health without directly reducing these imperfections.

First CheckHealth & medicine

Wearing a tight underwear lowers a man’s sperm count

Publisher’s rating: True. However, its link to infertility remains uncertain

Research from related reporting says that very tight underwear or trousers can affect sperm production, while another article cautions that everyday underwear choices are unlikely to make much difference for most healthy men. The excerpts do not establish that tight underwear causes infertility.