Peer-reviewed research concerning hot tub, summarized and appraised in plain language with every source cited.
This study looked at how the smallest blood vessels in the skin respond to a hot bath, and whether that differs by ethnicity. Thirty-one healthy young men (10 White-European, 10…
This study asked whether a man's heat exposures affect how quickly his partner conceives, which is a harder and more useful question than whether they affect a semen sample. It…
This review pulled together what is known about how everyday life affects a man's fertility, covering age, psychological stress, nutrition, physical activity, caffeine, scrotal temperature, hot water and mobile phone…
This is a history of forty years of French research into male contraception (hormonal, chemical and thermal) summarising clinical trials involving thousands of men and couples. Those trials established that…
This study looked at whether stopping hot tubs, hot baths and whirlpools improves semen quality in infertile men. Eleven men with a regular wet heat habit were assessed before and…