When `smoke Gets In Your Eyes,' You're Risking Serious Vision Problems Research Has Found That Cigarette Smoking Is Linked Or Is Directly Related To Many Medical Illnesses And Diseases Including Cancer, Strokes, Diabetes, Emphysema, Bronchitis, Insomnia, Headaches, Thyroid Diseases, Wrinkling Of The Skin, Heart Attacks, Miscarriages And Stillbirths.