Tobacco smoke contains numerous carcinogens (cancer-causing substances) that can increase the risk of various types of cancer, including lung, throat, mouth, and bladder cancer.
Heavy alcohol consumption has been linked to an increased risk of several types of cancer, including liver, breast, colorectal, and esophageal cancer.
A diet high in processed foods, red and processed meats, sugary beverages, and low in fruits, vegetables, and whole grains may increase the risk of certain cancers, such as colorectal cancer.
Being sedentary or not engaging in regular physical activity is associated with an increased risk of several types of cancer, including breast, colon, and prostate cancer.
Being overweight or obese is a risk factor for various types of cancer, including breast, colorectal, pancreatic, and endometrial cancer.
Exposure to ultraviolet (UV) radiation from the sun or tanning beds increases the risk of skin cancer, including melanoma, basal cell carcinoma, and squamous cell carcinoma.
Chronic sleep deprivation or poor sleep quality may weaken the immune system and increase inflammation, which can contribute to cancer development and progression.