Examlex
How many molecules are there in 14 grams of nitrogen gas?
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.
Weight-Bearing Exercise
Physical activities that require one to support their own body weight, such as walking, running, or lifting weights, which help in strengthening bones and muscles.
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