What is Physical Inactivity?
Physical inactivity refers to a lifestyle where an individual does not engage in sufficient levels of
physical activity or exercise. This can include a lack of both
aerobic activities and muscle-strengthening exercises. The World Health Organization (WHO) recommends adults engage in at least 150-300 minutes of moderate-intensity, or 75-150 minutes of vigorous-intensity aerobic physical activity each week.
Hormonal Imbalances: Physical inactivity can lead to an imbalance in hormones such as estrogen and insulin, which can promote the growth of certain cancers.
Obesity: Lack of physical activity is closely linked to
obesity, and excess body fat can produce inflammatory chemicals that promote cancer.
Immune Function: Regular exercise helps to boost the immune system, which can help in detecting and destroying cancer cells.
Inflammation: Chronic inflammation is a risk factor for cancer, and physical inactivity can increase levels of inflammation in the body.
Can Physical Activity Reduce Cancer Risk?
Yes, physical activity can significantly reduce the risk of developing cancer. Engaging in regular exercise helps to regulate hormones, maintain a healthy weight, and boost the immune system. It can also reduce levels of inflammation and improve overall physical and mental health, thereby lowering the risk of various cancers.
How Much Physical Activity is Needed to Reduce Cancer Risk?
The amount of physical activity needed to reduce cancer risk varies depending on the type of cancer. However, general guidelines recommend at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic activity per week, combined with muscle-strengthening activities on two or more days a week. This level of physical activity has been shown to significantly reduce the risk of several types of cancer.
What Types of Physical Activities are Most Beneficial?
Both
aerobic activities and muscle-strengthening exercises are beneficial in reducing cancer risk. Examples of aerobic activities include walking, running, swimming, and cycling. Muscle-strengthening exercises can include weight lifting, resistance band exercises, and body-weight exercises such as push-ups and squats.
Are There Specific Recommendations for Cancer Survivors?
Cancer survivors can also benefit from regular physical activity. Engaging in exercise can help improve physical function, reduce fatigue, and improve quality of life. It is important for cancer survivors to consult with their healthcare provider before starting any new exercise regimen to ensure it is safe and appropriate for their individual health status.
Conclusion
Physical inactivity is a modifiable risk factor for cancer. By incorporating regular physical activity into daily routines, individuals can significantly reduce their risk of developing various types of cancer. Whether it's through structured exercise programs or simple lifestyle changes, staying active is a crucial component of cancer prevention and overall health.
