National Cancer Week
National Cancer Week is a special week held annually in April 1–7 in Türkiye, aimed at raising public awareness about cancer and emphasizing the importance of early diagnosis. First adopted in 1956 on the recommendation of the Cancer Research and Fight Organization, this week is now observed through various activities organized by health institutions and schools.

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What Is Cancer?
Cancer is a disease characterized by the uncontrolled division and multiplication of certain cells in the body, which gain the ability to spread to other tissues. While normal cells follow the body’s regulatory rules, cancer cells violate these rules and grow rapidly.

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Causes of Cancer and Prevention Methods
Approximately 90% of cancer cases are linked to environmental factors (lifestyle and external influences), while only 10% are due to genetic (inherited) factors. According to experts, between one third and half of all cancers can be prevented through healthy habits.

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Actions to protect against cancer:
Healthy Eating: Consume fruits, vegetables, and whole grains; avoid processed foods.
Physical Activity: Engage in regular movement and perform at least 150 minutes of exercise per week.
Avoid Harmful Habits: Refrain from tobacco and alcohol use.
Vaccination: Get vaccinated against viruses that cause certain types of cancer, such as cervical and liver cancer.
Sun Protection: Avoid prolonged and unprotected exposure to sunlight.

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Early Diagnosis Saves Lives
Detecting cancer at an early stage, before symptoms progress, significantly improves treatment success. In Türkiye, the Ministry of Health implements National Screening Programs that provide free screening services to specific age groups.
These screenings are conducted at Cancer Early Diagnosis, Screening and Education Centers (KETEM), Healthy Life Centers (SHM), and Family Health Centers (ASM).

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Cancer by the Numbers
- Globally, 1 in every 5 people has a risk of developing cancer by age 75.
- In Türkiye, cancer is the second leading cause of death after heart disease.
- The most common cancer in men is lung cancer, while in women it is breast cancer.

