There are several factors that can increase the risk of developing cancer, including lifestyle-related factors, environmental factors, and genetic factors. The most common causes of cancer globally include:
Tobacco use: Tobacco use is the leading cause of preventable cancer deaths globally. Smoking is linked to several types of cancer, including lung cancer, bladder cancer, and oral cancer.
Poor diet: A diet that is high in processed and red meats and low in fruits, vegetables, and whole grains has been linked to an increased risk of several types of cancer, including colorectal, breast, and prostate cancer.
Physical inactivity: Lack of physical activity has been linked to an increased risk of several types of cancer, including breast and colon cancer.
Alcohol consumption: Heavy alcohol consumption is linked to an increased risk of several types of cancer, including liver, breast, and colorectal cancer.
Infections: Certain infections, such as human papillomavirus (HPV), hepatitis B and C, and human immunodeficiency virus (HIV), have been linked to an increased risk of several types of cancer, including cervical, liver, and Hodgkin’s lymphoma.
Air pollution: Exposure to air pollution has been linked to an increased risk of several types of cancer, including lung cancer.
UV radiation: Prolonged exposure to UV radiation from the sun or from artificial sources such as tanning beds has been linked to an increased risk of skin cancer.
These are some of the most common causes of cancer globally. It is important to note that cancer is a complex disease that is influenced by a combination of factors and not just one cause.