Which factor has the most influence on the body's metabolic rate?

Question

Which factor has the most influence on the body's metabolic rate? ​

Quizplus · Accepted Answer

The amount of lean body tissue (muscle) has the most influence on the body's metabolic rate. This is because muscle tissue is more metabolically active than fat tissue, meaning it burns more calories at rest. Therefore, individuals with more lean body tissue have a higher basal metabolic rate (BMR) and burn more calories at rest than those with less lean body tissue. Age and gender can also influence metabolic rate, but to a lesser extent than the amount of lean body tissue. The amount of fat tissue also influences metabolic rate, but in the opposite way – more fat tissue leads to a slower metabolism.

Which Factor Has the Most Influence on the Body's Metabolic