There is no need to study 12 hours a day or all the time. If anyone is studying for that long per day, then they are not doing it correctly. I understand going all in during the first semester, as we are figuring things out, but the plan should change from studying hard to studying smartly. I hope you all in the basic science years are also taking breaks when you can. Take a day or half off and do something you like, away from school and classes. Some form of cardio workout/meditation helps as well after a long day of lectures. Your mental health is equally (if not more) important than the physical.