What is the age range with the highest incidence of cancer?

Cancer incidence generally increases after the age of 40, and the risk rises progressively with age, particularly peaking between ages 50 and 70. Individuals experiencing prolonged discomfort or having a family history of cancer are advised to seek medical attention promptly. Detailed analysis is as follows:

After age 40, human organ functions gradually decline, cellular repair capacity diminishes, and the likelihood of DNA replication errors increases, making it easier for abnormal cells to develop into cancer cells. At the same time, immune system function weakens, reducing the body's ability to detect and eliminate abnormal cells, thereby allowing cancer cells to survive and proliferate more easily, leading to an increased risk of cancer.

People over 40 have had longer exposure to carcinogenic factors such as smoking, alcohol consumption, poor diet, and environmental pollutants. These factors accumulate in the body over time, continuously damaging cells and tissues and increasing the likelihood of cancer development. However, certain cancers such as leukemia and lymphoma can also occur in adolescents, although their overall incidence is significantly lower compared to middle-aged and elderly populations.

Individuals over 40 should undergo regular cancer screenings, selecting appropriate tests based on personal health conditions. In daily life, they should maintain healthy habits and minimize harmful behaviors such as smoking and excessive drinking. If symptoms such as unexplained weight loss or pain occur, prompt medical evaluation is essential to avoid delays in diagnosis and treatment.