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What happens to my body when I exercise? | BBC Science Focus Magazine

sciencefocus.com · 276 words · saved by 1 readers

There’s a lot going on inside your body when you go out for that morning jog.

Exercise diverts blood from your liver and digestive system to your skeletal muscles. Hormones tell the body to convert fat into glucose, reduce the pain you feel and improve your mood. Muscles generate lactic acid as a by-product of intensive exercise and, as this builds up, the pH of the blood around the muscles drops. This drop in pH eventually prevents the muscles contracting further. At this point, you need to rest to allow the lactic acid to be metabolised. 1. Brain © Raja Lockey The brain makes neurotransmitters, like serotonin, dopamine and GABA. This is part of the reason why the brai

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