Bryan Johnson's testicular icing claim sparks fertility debate among experts
Longevity influencer Bryan Johnson has claimed that regularly applying ice packs to his testicles significantly boosts his sperm count. The unusual practice gained viral attention after inspiring several Reddit users to try the method themselves. Some existing research does suggest that mild scrotal cooling may have modest benefits for male fertility. However, medical experts warn that current evidence is not strong enough to confirm meaningful improvements in testosterone levels or sperm production overall.
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