Which hormone is responsible for stimulating growth and cell reproduction?

The hormone responsible for stimulating growth and cell reproduction is Growth Hormone. This peptide hormone, which is secreted by the anterior pituitary gland, plays a crucial role in various growth processes within the body. It promotes the growth of tissues and organs by stimulating cellular reproduction and regeneration, ultimately leading to an increase in both height and muscle mass during periods of growth, such as childhood and adolescence.

Growth Hormone also has metabolic effects, including influencing protein synthesis, fat metabolism, and carbohydrate metabolism, which are integral to growth and development. Overall, its primary function ties directly to enhancing growth and facilitating the proper functioning of other hormone systems in the body.