The answer to this question would be mental health and balance.That would help you stay positive and keep you on track which would benefit you mentally and physically
Heart Disease,Hypertension,Obesity,Diabetes and Depression are all health risks of sleep deprivation.
This classmate will show they are more open and subject to pressure and they will be lead on to do more and more by the people that see them as a “party animal” and they then will be with this group that peer pressure them into doing more and more dangerous things and if we’re talking about a real scenario they can get sick