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Why Some Men Are Using Ice Packs in Saunas to Boost Fertility

A 28‑year‑old Miami man puts an ice pack on his groin each morning in a sauna, hoping to keep his sperm count high - a trend spurred by social‑media influencers and little evidence.

Source: bbc.co.uk2 min read
Simon in a wooden‑framed sauna
Simon in a wooden‑framed sauna (Simon sits in a wooden‑framed sauna, wearing black boxer shorts and a pouch with the ‘Chill nuts’ logo over his groin.)

In brief

Simon, a Miami-based 28‑year‑old, now starts each day in a sauna with an ice pack strapped over his testicles to preserve sperm count. His routine was inspired by influencer Bryan Johnson and the booming online obsession with male fertility. Medical experts warn that while temperature control can affect sperm quality, the untested “hack” offers no proven benefit and may lead to risky practices such as unregulated steroid use. A split in the medical community highlights the gap between self‑care trends and evidence‑based medicine, especially as men turn to unverified supplements and prescription drugs to counteract potential fertility harms. The net effect is a surge in misinformation and a cautionary call for balanced, science‑backed guidance.

Morning Rituals and a Growing Fertility Fix

In the steamy air of a sauna he drapes an ice pack over his groin, a strange but purposeful routine devised by Simon, 28, of Miami. “I put it on the testicles in order to preserve high sperm count,” he explains – a practice he does daily alongside plenty of sun, filtered water, and cotton boxer shorts.

The method has no medical endorsement, yet it has captured the imagination of a generation with a growing anxiety over fertility, amplified by influencers. A notorious ex‑Silicon Valley billionaire, Bryan Johnson, claims a four‑fold sperm count and promotes similar sauna‑ice protocols to audiences that number in the millions.

The Trend Beyond the Sauna

From TikTok hashtags like #malefertility to Instagram feeds of “fishing” with someone’s semen in a vial, men are turning to unconventional wellness routines. Popular “stacks” of supplements, red‑light therapy, and even blood‑donation, aimed at eliminating toxins, are sold in online stores and YouTube channels.

Such sprays of unproven strategy echo a broader anxiety: are men’s rising use of testosterone replacements and steroids killing sperm? In fact, both the American Urological Association and reproductive endocrinologists warn that high testosterone or hormone implants can severely reduce natural sperm production. Some men attempt to reverse the damage with prescribed HCG/HMG “fertility medicines”, a practice that is heavily marketed in a vacuum of evidence‑based advice.

Evidence Where the Hooks Fall Short

Scientists agree that testicular temperature affects sperm quality, but the extreme cold in a sauna‑like setting may not counterbalance the other effects of high heat exposure inherent to the ritual. No large, controlled studies have confirmed that the ice pack method boosts sperm numbers. NASA‑grade data suggest a modest link between environmental pollutants and sperm decline, but the jump to everyday hacks is unsubstantiated.

The burgeoning interest in fertility not only produces a marketplace for wellness but also creates a vacuum where the pandemic‑age influencers fill gaps that medical professionals cannot always get into. Many men, such as Jamal, now face significant health risks from unregulated medications, while waiting for proper medical screening and treatment.

If you or someone you know is worried about fertility, experts recommend a straightforward approach: regular exercise, balanced diet, limiting alcohol, and consulting a reproductive specialist for reliable semen analysis.

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