Why does exercise have such a big impact on the brain?

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If I go 3 days without exercising, I start experiencing brain fog and get depressed & more anxious. When I workout again, I gain mental clarity, become more motivated to take on the day, and like 75% of the self-deprecating thoughts I experience go away. Why does this happen to me? What’s the science behind this?

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9 Answers

Anonymous 0 Comments

Some of what works for me is a sense of accomplishment.

There’s a bike trail near my house which has mile markers on it, and the start, where it says “0.0” is just over a mile from my house. The first time I got to the other end, where it said “10.0,” I felt like I’d climbed Everest.

Sure, maybe sometimes I feel worthless, but in that moment, I had achieved something, and making it all the way back home left me feeling proud of myself. At a guess, most people can’t ride more than 20 miles after they turn 60.

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