If your teen wants to stay up all night and sleep all day, don’t blame them -- blame biology. The body’s circadian rhythm, its natural internal clock, begins to change as individuals enter into the teen years. The hormone melatonin, which helps people to feel sleepy, starts being released later at night as they mature. This makes it harder for teens to get to sleep at an early hour -- and harder to get up on time for school!

Many factors influence how we sleep.

When our sleep cycle gets disrupted, it can be hard to pinpoint the cause -- and it’s quite possible that there is more than one reason. A broken sleep cycle is basically our circadian rhythm off track.