Resting metabolic rate (RMR) can be affected by

Question

(1 point)

Answer 1

Resting metabolic rate (RMR) can be affected by several factors, including:

1. Age: RMR typically decreases with age due to a loss of muscle mass and changes in hormone levels.
2. Sex: Men usually have a higher RMR compared to women, mainly due to greater muscle mass.
3. Body composition: Higher levels of lean muscle mass increase RMR, while a higher percentage of body fat can lower it.
4. Hormonal levels: Hormones such as thyroid hormones can significantly influence RMR; for instance, hyperthyroidism can increase RMR.
5. Genetics: Genetic factors can determine individual variations in metabolic rates.
6. ** caloric intake**: Extreme caloric restriction can lower RMR as the body adapts to conserve energy.
7. Environmental factors: Temperature can influence RMR, with colder environments potentially increasing it as the body works to maintain its core temperature.
8. Physical fitness: Regular physical activity, especially strength training, can increase muscle mass and thus raise RMR.

Each of these factors can play a significant role in determining an individual's resting metabolic rate.