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The Conversation
The Conversation
Hoani Smith, Lecturer in Sport Management and Sport Science, Lincoln University, New Zealand

Could saunas and ice baths affect male fertility? Here’s what the evidence says

Testosterone Internet
Katja Forster/Getty Images

The internet’s obsession with “maxxing” has turned almost every aspect of self-improvement into a trend.

Young men now swap tips on optimising everything from sleep and appearance to testosterone, longevity and mental performance.

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