Info Tech Serv. Web Tech Serv. The environment in which you study can have a big effect on how efficient your study time is. Some people need some sound and some like silence. Find what works for you.
Culprits are family and friends.
You can catch up with folks later. 75 watt bulbs are best, but not too close and placed opposite the dominant hand. Better cool than warm. Your study time will go better if you take a few minutes at the start to straighten things up. A desk and straight-backed chair is usually best.