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Exercise, Lymphokines, Calories, and Cancer
The Physician and Sportsmedicine
|July 13, 2016
Summary
Regular physical activity may lower cancer risk by preventing obesity and stimulating immune responses. However, more research is needed to confirm these protective effects of exercise against cancer.
Area of Science:
- Oncology
- Epidemiology
- Exercise Science
Background:
- Epidemiological studies indicate a correlation between regular exercise and reduced cancer risk.
- Existing research explores animal models and plausible mechanisms for exercise-induced cancer protection in humans.
Purpose of the Study:
- To review current epidemiological studies on exercise and cancer risk.
- To examine underlying animal research and proposed protective mechanisms.
- To synthesize the evidence regarding exercise's role in cancer prevention.
Main Methods:
- Literature review of leading epidemiological studies.
- Analysis of relevant animal research.
- Examination of proposed biological mechanisms.
Main Results:
- Exercise may reduce cancer risk through mechanisms such as obesity prevention and immune system stimulation (lymphokines).
- Other healthful behavioral changes associated with exercise may also contribute to cancer prevention.
- The current data supporting exercise as a cancer preventative are preliminary and debated.
Conclusions:
- There is a plausible basis for exercise contributing to cancer prevention.
- Further rigorous research is essential to definitively establish the protective role of exercise against cancer.
- This review serves as an introduction to a series on internal medicine topics.
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