Life thrives on movement. So what are the benefits of regular exercise? Movement permeates every corner and cell of life. Blood circulates ceaselessly, the brain functions constantly—even during sleep, our eyeballs remain in motion. This is the essence of life's dynamism. Exercise's value lies in maintaining our bodies' health. Below, we explore exercise's role in cancer prevention.1. Exercise Boosts Immune Function Physical activity enhances the body's ability to produce white blood cells. Scientific research indicates that exercise stimulates the secretion of certain hormones, accelerating bone marrow's production of white blood cells. This increases their quantity, extends their lifespan, and enhances phagocytic capacity. Consequently, even a small number of cancer cells appearing in the body will be swiftly surrounded and eliminated by numerous white blood cells.Additionally, the quantity and activity of immune cells in the body increase with greater exercise intensity. Simultaneously, the number of antibodies secreted by the respiratory and digestive tract mucosa also rises significantly. This not only defends against bacterial and viral infections but also greatly enhances both the specific and non-specific immune systems' ability to kill tumor cells.It is crucial to understand that the immune system serves as the body's primary weapon against tumors. Only by wielding this powerful tool can we achieve ultimate victory in the battle against cancer. II. Exercise Regulates Endocrine Levels, Particularly Sex Hormones Estrogen levels in the body show a significant correlation with numerous gynecological tumors, including ovarian cancer, breast cancer, and endometrial cancer.Certain active metabolites produced during estrogen metabolism promote the progression of these tumors. The generation of these metabolites is linked to body fat levels—higher fat content leads to increased production of these carcinogenic substances. Regular exercise significantly reduces excess body fat and decreases estrogen secretion, offering benefits for patients with such tumors.This inhibits the proliferation of cancer cells and effectively "executes" them. Exercise generates significant heat in muscles, and intense activity can elevate body temperature to over 40°C (104°F). Cancer cells are far less heat-tolerant than normal cells and are more easily killed by elevated temperatures.Alongside elevated body temperature, exercise induces profuse sweating, which helps promptly expel carcinogens and other harmful substances from the body. Furthermore, accelerated blood circulation during exercise prevents cancer cells—whether newly formed or metastasizing—from settling in internal organs. Like tiny grains of sand in a swift current, these cells cannot gain a foothold to grow, develop, or spread.
IV. Exercise Increases Oxygen Intake
At rest, the average person inhales 4 to 7 liters of oxygen per minute, while exercise can elevate this to over 100 liters. This increased oxygen intake and frequent gas exchange facilitate the expulsion of carcinogens from the body.A low-oxygen environment greatly favors tumor growth and metastasis. During exercise, especially aerobic exercise, the body inhales far more oxygen than at rest, correcting the hypoxic state within the body and helping to inhibit cancer cell growth. Regular aerobic exercise can also effectively enhance the activity of antioxidant enzymes, thereby continuously clearing excess free radicals from the body and reducing the likelihood of cancer occurrence.
V. Exercise Improves Mood and Alleviates Worry and Anxiety
Some cancer patients develop the disease due to excessive emotional suppression and psychological trauma. Exercise promotes mental well-being and helps forget troubles. During physical activity, the brain releases endorphins—substances that induce physical and mental pleasure. These not only dispel worry and anxiety but also counteract the suppression of the immune system caused by negative emotions.