Not so good. Because after a night's sleep, all the organs of the body are still in a state of rest, and suddenly entering a state of strenuous exercise will cause a great burden to the organs. It's like if you don't do warm-up exercises, your muscles will get hurt.

You can exercise early, but you can't wake up. It takes a transitional period for the body to return from a rest state to a daily state and then exercise.