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Dr Alyssa Olenick hybrid training hyrox athlete strength ultra runner fitness

Use hybrid training to achieve multiple fitness goals

Dr Alyssa Olenick Dr Alyssa Olenick is a highly regarded exercise physiologist, ultra-marathon runner and powerlifter with a deep passion for fitness, health, and wellness. She specialises in understanding the intricate relationship between resistance training, endurance sports and metabolic health, and is known for her science-based approach to exercise and recovery, and her ability to…

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extreme exercise fertility testosterone cycling sperm health

Can too much endurance exercise make you infertile?

Endurance cyclists are supremely healthy athletes, but scientific studies now suggest that many male cyclists have surprisingly low sperm counts. Some ultra-fit marathon runners are discovering a similar decline in their reproductive health. In fact, research suggests that many super-fit professional athletes often have lower sperm counts than “ordinary” men. Why are so many ultra-fit…

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