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Why is it important to have healthy sperm?

Dr. Michael Roizen, MD
Internal Medicine
Healthy sperm and a robust sperm count improve your odds that a single sperm will survive its ultramarathon journey and meet an eligible egg. Sperm have different functions. Some act like blockers to stop other sperm, which makes "survival of the fittest" sense for animals with multiple mates during rutting season, while others are sprinters designed to beat a path to the egg. More than half of a guy's sperm are the sprinter/swimmer type, and those oval heads need to be strong enough to break through an egg's tough outer layer.

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