Growth hormone
Stimulates growth, cell repair, and metabolism, largely via IGF-1 from the liver. Secreted in pulses, especially during deep sleep and after intense exercise.
Too little may be associated with
In children, stunted growth; in adults, reduced muscle mass and vitality.
Too much may be associated with
Overgrowth of bone and tissue (gigantism in children, acromegaly in adults).
Informational only — not medical advice.
Organ systems
Stimuli that influence it
Behaviors
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