When your body temperature remains elevated you are very likely to have trouble sleeping.
Exercise elevates body temperature, and cooling the body becomes increasingly difficult when you are inadequately hydrated.
Dehydration also leads to an elevated heart rate, even hours after your workout or race.
Why is it hard to fall asleep after working out?
Generally, post-workout you’re probably a little dehydrated. Dehydration leads to an increased heart rate and can make it difficult to bring down your core body temperature, crucial to help you get to sleep. Exercise also produces the stress hormones cortisol and norepinephrine which will keep your body feeling alert.
Is it OK to sleep after workout?
Every person is different, but many people prefer a workout right before bed due to the following benefits: Sleep right after a workout allows your body time to repair and grow muscle tissue. Exercising can make you feel tired immediately after, which could promote sleep.
How does exercise affect sleep?
Physical activity improves sleep quality and increases sleep duration. Exercise may also bolster sleep in other ways, because it reduces stress and tires you out. It can be especially helpful if you are able to exercise outdoors and let your body absorb natural sunlight during the daytime hours.
Can exercise make it hard to sleep?
More often than not, exercise is good for your health and improves sleep quality. Increased body heat could also make it difficult to sleep. Light aerobic exercise and anaerobic exercise such as lifting weights almost always increases sleep quality.