Julia Ravey tackles the science behind sport. Sophie Etheridge set a record for the longest time to swim the English Channel so Julia asks: how did she keep going?

Julia Ravey tackles the science behind sport. Sophie Etheridge set a record for the longest time to swim the English Channel so Julia asks: how did she keep going?

How do you keep swimming for 29 hours?

Mental Muscle tackles the science behind the sport. Join Julia Ravey as she takes an in-depth look.Originally broadcast on BBC Radio Cambridgeshire.

Sports

Technology

Mental Muscle tackles the science behind the sport. Join Julia Ravey as she takes an in-depth look. Originally broadcast on BBC Radio Cambridgeshire.

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How do you keep swimming for 29 hours?

How do you keep swimming for 29 hours?