The brain releases dopamine, the “reward chemical,” in response to any form of pleasure. And yes, our good friend exercise can kick off a considerable wave of dopamine.
However, so do drugs and alcohol. This reward cycle in the brain can lead to patterns of substance use disorder.
Exercise is there for people while they recover from addiction. Physical activity can distract people from cravings when they’re trying to quit smoking.
Working out while on the wagon has other benefits too. Excessive alcohol use disrupts many body processes, including circadian rhythms. As a result, people with alcohol use disorder may find they have trouble falling asleep without drinking.
A 2010 study on animals suggested that exercise might help reset the body clock so people can hit the hay at the right time without alcohol.
Lifting 50-kilo dumbbells doesn’t seem that relaxing… but have you ever caught some Zzz’s after a long run or weight session at the gym? Doesn’t it feel blissful?
That’s because a moderate workout can be the equivalent of a sleeping pill, even for people with insomnia.
Exercising 5 to 6 hours before bedtime raises your body’s core temperature. When your temp drops back to normal a few hours later, it signals to your body that it’s time to sleep.
That delicious sleepy feeling after exercise can help you wind down far enough to get some hearty sleep. But it can also help you relax in the meantime.