Eli5: Why is exercise good?
In: Biology
Besides increasing muscle strength and endurance, It helps your heart and lungs exercise, which helps clean your airways and bloodstream.
Plus. when you exercise your blood stream releases endorphins, dopamine, norepinephrine, and serotonin.
These chemicals help control your mood, so it helps if you’re angry or depressed. It also helps keep your head clear when something emotional happens. They can also give you a high if you exercise enough (is what marijuana makes your brain release), but without the intoxication or harmful effects on liver and lungs. (Also, this effect doesn’t work backwards)
So, your heart pumps less when you’re stationary or doing daily tasks, your lungs work less hard (and you can hold your breath longer), your brain health goes up as well.
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