Often enough, we study in a place that we feel comfortable in, but this has both pros and cons. Make sure that the room you’re studying in is not too cold or too warm. A cold room will make you feel uneasy whereas an overly warm room will make you feel lethargic and lazy. Be sure to have a proper ventilation system or simply open up a window. Choose a room/place that you’re well accustomed to, a place you feel comfortable in with good lighting.