Cancer: Mode of Existence

Around 330,000 people are analyzed with cancer each year and 161,000 will die, according to statistics from Cancer Research UK. Cancer is caused by both internal factors (such as hormones, inherited mutations and immune conditions) and environmental factors. The important lifestyle factors include alcohol, tobacco, diet, obesity, infectious agents, environmental pollutants, and radiation increase the mortality of cancer. Tobacco use increases the threat of developing at least 14 types of cancer. The chronic alcohol consumption is a risk factor for cancers of the upper aero digestive tract, including cancers of the oral cavity, pharynx, hypopharynx, larynx, and esophagus. Numerous air pollutants such as PAHs (polycyclic aromatic hydrocarbons) increase the risk of lung cancer. Some cancer cases may be persuaded by ultraviolet (UV), pulsed electromagnetic fields and radiation. Diet is linked to cancer deaths in colorectal cancer cases. The lesser hereditary impact of cancer and the modifiable nature of the environmental factors direct to the preventability of cancer