Tag: The Human Body

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Do You Have A Maximum Heart Rate?

SciShow answers the question… Does your heart rate have an upper limit and could you ever reach it?

 

 

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How The Human Digestive System Works

Constantly churning inside of you, the digestive system performs a daily marvel: it transforms your food into the vital nutrients that sustain your body and ensure your survival. Emma Bryce traces food’s nine-meter-long, 40-hour journey through the remarkable digestive tract.

Across the planet, humans eat on average between 1 and 2.7 kilograms of food a day, and every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters, this is one of the most complicated systems in the body.

 

 

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How Often Do You Really Need To Shower?

Do you really need a daily shower to stay clean, or is it doing more harm than good? Some scientists have recommendations based on what we know about our skin — and what might be living on top of it.

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