Cancer is a class of diseases described by out-of-control cell growth. There are more than 100 different types of cancer which are identified by the type of cell initially affected.
Cancer harms the body when altered cells divide uncontrollably to form lumps or masses of tissue called tumors (except in the case of leukemia where cancer prohibits normal blood function by abnormal cell division in the blood stream).
Tumors can grow and interfere with the digestive, nervous, and circulatory systems, and they can release hormones that alter body function. Tumors that stay in one spot and demonstrate limited growth are generally considered to be benign.
Most common types of cancer – Anal Cancer, Bladder Cancer, Bone Cancer, Breast Cancer, Cervical Cancer, Kidney Cancer, Leukemia, Liver Cancer, Pancreatic Cancer, Stomach Cancer, Thyroid Cancer, Vaginal Cancer.
It is believed that cancer risk can be reduced by avoiding tobacco, limiting alcohol intake, limiting UV ray exposure from the sun and tanning beds and maintaining a healthy diet, level of fitness and seeking regular medical care.
According to the World Health Organization (WHO), the numbers of new cancer cases is expected to rise by about 70% over the next 20 years.
Source: medicalnewstoday.com
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