Examlex
What structures are included in the upper respiratory tract? In the lower respiratory tract?
Moderate-Intensity Exercise
A level of exercise that raises the heart rate to 50-70% of the maximum heart rate, improving cardiovascular health without excessive strain.
National Institutes of Health
A part of the U.S. Department of Health and Human Services; the primary federal agency for conducting and supporting medical research.
Body Mass Index
A measure of body fat based on height and weight that applies to adult men and women, used to categorize underweight, normal weight, overweight, and obesity.
Osteoporosis
A bone disease characterized by the thinning of bone tissue and loss of bone density over time.
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