Overall, technology has had a beneficial effect on medical treatment.

Yes, overall technology played a big role in medical treatment. Science has gone through large leaps in curing many diseases and preventing other known conditions from spreading. Technology contributed a lot in recent medicine breakthroughs in surgery and overall patient care. It is a contributor for decreasing death rates of many patients all over the world and it has done its part greatly in preserving life. Medical treatments are too far from the old days compared to today because of innovations made by wise minds around the world. 

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle