Which statements are True or False One of the studies from the University of Florida in the USA found that fatal heart attacks and stroke peak during the spring months. This depression usually starts in autumn and disappears when spring comes. Symptoms include problems with concentration, changes in sleeping and eating habits and loss of interest in once enjoyable activities. In order to feel better when people have depression they should have sunlight, take vitamin D or spend some hours beneath light-therapy lamps. People don't have lack of vitamins contained in vegetables and fruit during winter season. People with light skin are most sensitive to sunburn. Allergic people start to sniffle and sneeze as plants release pollen. There is no doubt that weather affects greatly people health.