Smoking is a deadly habit, and the diseases it causes can make anyone’s life living hell, before inevitable happens. Lung cancer Type of cancer that kills more people than any other form of cancer, and cigarette smoking is the main contributing factor, responsible for almost 90 percent of lung cancer deaths, with less than 20 percent 5 year survival rate after the diagnosis. Heart disease Narrowing and blockages of arteries reduce blood and oxygen flow, greatly increasing chances of developing heart condition. Smoking is considered as the main culprit for this, and data shows decrease in heart problems as the number of smokers decreases as well. Stroke 4th leading cause of death in USA alone, and the main cause of disability. Since smoking affects arteries and blood flow, it can cause oxygen deprivation of the brain, leading to a stroke. Even surviving the stroke can leave a person disabled and paralyzed, thus greatly affecting the quality of life. Chronic obstructive pulmonary disease, COPD Chronic obstructive pulmonary disease causes early death, preceded by long-term breathing disability. It is a progressive disease, and 80 percent of COPD cases are caused by smoking. Asthma Asthma is a chronic lung disease causing difficulties breathing. Affecting 25 million of people in USA, and 300 million worldwide, it causes 150 000 annual deaths. Smoking irritates breathing passageways, and it can be the main trigger of severe asthma attacks. Other types of cancer Smoking is a leading cause of many types of cancer, including liver, pancreatic, stomach, colon, and many other types of it. Patients and cancer survivors are more likely to develop a second primary cancer if they are smokers. Sudden infant death syndrome This disease is the leading cause of baby deaths under the age of 1, otherwise considered perfectly healthy. 25% of sudden infant death syndrome cases are attributed to second-hand smoke. Diabetes Smokers have 30 to 40 percent greater risk of developing diabetes than people who don’t smoke at all. Diabetes negatively affects blood flow to legs and feet, which can lead to infections and in extreme cases even amputation. Ectopic pregnancy When a fertilized egg is implanted somewhere other than the uterus, it leads to ectopic pregnancy. The egg cannot survive in that environment, and if left untreated, can be lethal for the mother. Additionally, smoking lowers fertility in both men and women, lowering the chances of conception. These are just some of the most common issues smoking can cause, and as every doctor says, “prevention is the best cure”, so stay healthy and enjoy life without smoking!