Essential tremor. Treatment. Some people with essential tremor don't require treatment if their symptoms are mild. But if your essential tremor is making it difficult to work or perform daily activities, discuss treatment options with your doctor.
Prolonged use of smokeless tobacco products can lead to serious health issues, such as cancer and heart disease. Some smokeless tobacco contains greater amounts of nicotineâthree to four times moreâthan cigarettes. These products also contain numerous substances that increase the risk of cancer of the mouth and throat.
How smoking causes lung cancer. Doctors believe smoking causes lung cancer by damaging the cells that line the lungs. When you inhale cigarette smoke, which is full of cancer-causing substances (carcinogens), changes in the lung tissue begin almost immediately. At first your body may be able to repair this damage.he two general types of lung cancer include: 1  Small cell lung cancer. 2  Small cell lung cancer occurs almost exclusively in heavy smokers and is less common than non-small cell lung cancer. 3  Non-small cell lung cancer.