One hypothesis suggests that girls must reach a certain ________________ to trigger pubertal changes such as menarche?

Question

Quizplus · Accepted Answer

Studies have shown that reaching a certain amount of body weight, specifically a certain percentage of body fat, is necessary for the onset of puberty in girls. This is because the hormone leptin, which is produced by fat cells, plays a key role in signaling to the brain that the body has enough energy stores to support reproductive function. Once a certain level of leptin is reached, the brain triggers the release of hormones that stimulate puberty, including the onset of menarche. Breast size or intelligence do not play a direct role in the onset of puberty. Brain size may be related to cognitive development, but not to the timing of puberty.

One Hypothesis Suggests That Girls Must Reach a Certain ________________