If you exercise at night, switch to mornings
Exercise increases body temperature, raises heart rate, and causes the body to release adrenaline. These may be desired side-effects during the day, but you’ll want to avoid them at night.
It’s easier for the body to transition into sleep when you’re feeling nice and cool, rather than hot and sweaty.
Adrenaline, also known as epinephrine, plays a role in the body’s “fight-or-flight” response. Adrenaline is useful when you’re getting pumped up for a workout, but it’s a lot less useful when you’re trying to settle in for the night.
The adrenaline released by the body during exercise can make us feel awake, alert, and energized, which is beneficial during the day, but counterproductive in the evening.
Generally, it’s a good idea to avoid intense workouts a few hours before you plan to go to bed. That way your body temperature, heart rate, and adrenaline levels will have plenty of time to return to normal.