What is cause, symptoms and preventing ways of cancer and explain the history of the disease?

Question

Genetic changes that cause cancer can be inherited from our parents. They can also arise during a person?s lifetime as a result of errors that occur as cells divide or because of damage to DNA caused by certain environmental exposures. Cancer-causing environmental exposures include substances, such as the chemicals in tobacco smoke, and radiation, such as ultraviolet rays from the sun. Types of Cancer There are more than 100 types of cancer. Types of cancer are usually named for the organs or tissues where the cancers form. For example, lung cancer starts in cells of the lung, and brain cancer starts in cells of the brain. prevention is not possible, symptom depends on the organ involved. thanks

S K Mittal · Accepted Answer

Genetic changes that cause cancer can be inherited from our parents. They can also arise during a person?s lifetime as a result of errors that occur as cells divide or because of damage to DNA caused by certain environmental exposures. Cancer-causing environmental exposures include substances, such as the chemicals in tobacco smoke, and radiation, such as ultraviolet rays from the sun. Types of Cancer There are more than 100 types of cancer. Types of cancer are usually named for the organs or tissues where the cancers form. For example, lung cancer starts in cells of the lung, and brain cancer starts in cells of the brain. prevention is not possible, symptom depends on the organ involved. thanks