Can a night owl turn into an early bird?

Some people wake up before the sun peeks over the horizon, run and eat a hearty breakfast, all before many others roll out of bed. That early awakening may sound exhausting to those who get up late, but can a night owl become an early bird?

It is possible to make a change, but it is not easy, said Michelle Drerup, director of behavioral sleep medicine at the Cleveland Clinic. “A real night owl doesn’t really feel great the first time it wakes up, especially when this starts to switch.”

Source