Resting metabolic rate (RMR) can be affected by several factors, including:
- Age: RMR tends to decrease with age due to loss of muscle mass and hormonal changes.
- Sex: Males generally have a higher RMR than females due to greater muscle mass.
- Body Composition: More muscle mass increases RMR, while higher body fat percentage tends to lower it.
- Hormones: Hormonal imbalances (e.g., thyroid hormones) can significantly affect RMR.
- Genetics: Genetic factors can play a role in the efficiency of metabolism.
- Diet: Nutritional intake, particularly protein intake, can influence RMR. Certain diets may temporarily boost metabolic rate (e.g., post-meal thermogenesis).
- Environmental Temperature: Exposure to extreme temperatures can increase energy expenditure to maintain body temperature.
- Health Conditions: Certain medical conditions (e.g., hyperthyroidism) can increase RMR, while others (e.g., hypothyroidism) can decrease it.
Understanding these factors can help you make informed decisions about your diet and exercise regimen to maintain a healthy metabolism.
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