Ice on testicles and donating blood - the myths sold to men trying to boost their sperm
Every morning, Simon, a 28‑year‑old from Miami, starts his day in a sauna, placing an ice pack on his groin. He believes the cold along with the heat helps to "sweat out toxins" and keeps his sperm count high. Despite the lack of medical evidence, he insists on protecting his testicles from excessive heat and appears to lead a strict routine of sunlight, filtered water, and cotton underwear.
The story is part of a broader trend: men exposed to fertility‑focused content on TikTok and Instagram feel pressured to adopt bizarre rituals. Influencers such as ex‑Silicon Valley billionaire Bryan Johnson and health‑coach Lucas claim that ice‑packs, red‑light therapy, blood donation and high‑dose testosterone stacks can reverse declining sperm counts. Their claims, backed by viral reach rather than science, fuel a market of supplements and unproven protocols.
Scientists warn that while low‑dose lifestyle changes (exercise, mild dehydration of the testes, avoiding tight underwear) are likely to help, extreme measures can harm fertility. Testosterone replacement therapy, steroids and self‑prescribed hormone “stacks” may further damage sperm production and trigger dangerous side effects such as clots, breast growth and hormonal imbalance.
Studies of sperm decline since the 1970s show a complex picture. A 2023 meta‑review confirmed a global drop, yet 2024 and 2025 research in the USA and Denmark found no clear decline. The scientific community calls for more research while acknowledging rising male infertility anxiety. Doctors argue that the absence of definitive data makes influencer advice hazardous and that medical guidance should be sought before attempting any treatment.
Experts such as Prof Suks Minhas and Prof Channa Jayasena have highlighted the risk of “infodemic” around fertility. They urge patients to rely on proven lifestyle changes and to consult specialists before experimenting with unverified stacks. Meanwhile, online communities and social‑media platforms have become echo chambers for unproven claims, pushing people toward potentially dangerous practices.
