The risks of smoking are greater than the benefits of smoking. Smoking can cause all sorts of problems such as heart disease, strokes, and different cancers. Smoking at a young age will often lead to lower rate of lung function and the rate of lung growth will be lower than someone that does not smoke. Smoking does not only affect your lungs like some may think but it can also affect your heart as well as your brain. If you are to start smoking at a young age you are three times more likely to use alcohol, eight times more likely to use marijuana, and twenty-two times more likely to use cocaine. Smoking is also related to a host of other risky behaviors, such as fighting and engaging in unprotected sex. On average, someone who smokes a pack or more of cigarettes each day lives 7 years less than someone who never smoked. The resting heart rates of young adult smokers are two to three beats per minute faster than nonsmokers. Smoking at an early age increases the risk of lung cancer. For most smoking-related cancers, the risk rises as the individual continues to smoke.