Have you ever fallen asleep with the light on?

It can happen sometimes, but try and avoid it as much as possible, because it disrupts the body production of Melatonin.

So what.. you say, well melatonin not only helps to regulate the body sleep mechanism -therefore a lack of it causes sleep disorders-, but melatonin is also an hormone responsible for helping the immune system preventing cancerous growth.

Read more about sleeping with artificial light detrimental to health