Lack of sleep can be dangerous to your health. Some study suggests that lack of sleep may lead to risk of heart disease, diabetes and mental health problems. If you are a person that always wakes up in the middle of the night and struggling to fall back asleep, here is some tips for you. In this clip, Dr. Erich Voight of NYU walks us through some simple things to do and things to avoid in order to fall back asleep so you don’t have to worry the next time insomnia hits you. Watch this clip.