Section 9-2
Body composition
A measure of how much body fat you have, as compared to muscle and bone
Fad diet
A popular diet that may help a person gain or lose weight but without proper regard for nutrition and other health issues
Body mass index (BMI)
A ratio of your weight to your height
Obesity
A term referring specifically to adults with a BMI of 30 or higher
Overweight
A term used to describe a person who is heavier than the standard for the person's height
Underweight
A term used to describe a person who is lighter than the standard for the person's height
Briefly describe how heredity, activity level, and body composition can affect a person's weight.
Due to traits inherited from your parents, you may have a natural tendency toward a certain weight. Your activity level, and therefore the number of calories burned, must be balanced with the number of calories you take in to maintain a healthy weight. A body more composed of more muscle than fat will naturally tend to be heavier than a body composed of more fat than muscle.
Why is exercise an important part of a weight loss program and also for gaining weight?
Exercise is necessary to maintain a healthy basal metabolic rate while decreasing your calorie intake; it helps you maintain fitness and gain healthy muscle mass.
What are two diseases associated with being overweight? What health risks are associated with being underweight?
High blood pressure and type 2 diabetes; anemia, heart irregularities, and trouble regulating body temperature.
Describe two problems associated with fad diets.
Weight loss is temporary; not with proper regard for nutrition and other health issues.
What is the formula for calculating body mass index? What does it mean for someone to have a healthy body mass index?
Weight over height squared times 703. A healthy BMI would be a healthy weight in relation to the standard for a person's height.