{'fraction_non_alphanumeric': 0.02227488151658768, 'fraction_numerical': 0.0, 'mean_word_length': 5.3014925373134325, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
If exercise is medicine, what is the dosimetry?

The statement ‘‘exercise is good for you’’ is almost completely non-controversial. There is a vast preponderance of evidence, from epidemiologic, observational, and controlled trials demonstrating that people are generally much healthier when they exercise regularly. More specifically, there is a vastly reduced risk of having the so-called ‘‘diseases of civilization’’ (obesity, hypertension, type II diabetes, cardiovascular disease, and some types of cancer). This powerful effect is understandable within the recently articulated context that humans are designed to be a very physically active species, and that sedentary living is as abnormal biologically as trying to live, for example, in Antarctica. Beyond the ability of regular physical activity to prevent disease, there is abundant, controlled evidence that patients with a variety of diseases not only return to normal life more quickly following participation in structured exercise training programs, but also have less evidence of progression in diseases that are usually thought of as being progressive. The evidence regarding the positive health benefits of exercise is so compelling that the American College of Sports Medicine (ACSM) has recently launched the initiative Exercise is Medicinei, which is intended to convey the idea that physicians should be as attentive to the exercise habits of their patients as they are to their medications, because the pattern of physical activity may be co-equal with pharmacologic therapy in terms of caring for patients. The problem, of course, is that physicians are not nearly as well trained in exercise physiology and exercise prescription as they are in pathophysiology and pharmacology. The bad news is that it will take a long time for medical schools to catch up with the training of physicians. The good news is that the principles of guiding patients into exercise programs are comparatively simple. The really good news is that, since exercise is an activity that people were designed to do, almost everyone will respond well and quickly.