1. Lung Cancer: Lung cancer is the deadliest cancer and is responsible for an estimated 1.8 million deaths globally per year. It is the second most common type of cancer in both men and women. Smoking is the most common risk factor, but exposure to second-hand smoke, radon, and asbestos are also known to increase risk of developing the disease.
2. Colorectal Cancer: Colorectal cancer is the second deadliest cancer worldwide and is responsible for an estimated 1.4 million deaths annually. Risk factors include a family history of the disease, smoking, and consuming a diet high in red or processed meats.
3. Breast Cancer: Breast cancer is the third deadliest cancer, and is responsible for an estimated 627,000 deaths per year. Risk factors include age, genetics, obesity, alcohol consumption, and hormone replacement therapy.
4. Pancreatic Cancer: Pancreatic cancer is the fourth deadliest cancer, and is responsible for an estimated 456,000 deaths per year. Risk factors include smoking, diabetes, obesity, and a family history of the disease.
5. Stomach Cancer: Stomach cancer is the fifth deadliest cancer, and is responsible for an estimated 783,000 deaths per year. Risk factors include a diet high in smoked and/or pickled foods, a family history of the disease, smoking, and infection with the Helicobacter pylori bacteria.