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On February 4 each year, the world celebrates World Cancer Day to show support for people living with cancer, take concrete action, and pressure stakeholders to do more.
World Cancer Day aims to unite under the banner of the fight against cancer in a positive and stimulating way. This year 2019 is "I am and I will do it".
According to the World Health Organization (WHO), cancer is the second leading cause of death in the world. In 2015, 8.8 million people were killed, or nearly one in six deaths worldwide.
Low- and middle-income countries account for about 70% of cancer deaths.
Cancer is a generic term encompassing a wide range of diseases that can affect all parts of the body, also called malignant tumors.
One of the hallmarks of cancer is the rapid birth of abnormal cells that can grow beyond their known boundaries, then break down into adjacent body parts and spread to other organs. This phenomenon is called transfer and represents the leading cause of cancer death.
According to the World Health Organization, cancer is caused by the transformation of normal cells into mutated cells and into a multistep process, resulting from the interaction between individual genetic factors and three categories of external factors. .
• Physical carcinogenic factors, such as UV and ionizing radiation.
And carcinogens, such as asbestos, components of tobacco smoke, aflatoxin (a food contaminant) and arsenic (a contaminant of drinking water).
• Biological carcinogens, such as infections caused by certain viruses, bacteria or parasites.
Aging is another key factor in cancer, whose age is very high and that may increase the risk of certain types of cancer with aging. The accumulation of cancer risk is associated with the tendency of cellular repair mechanisms to disintegrate with the aging of the person.
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