A hormone that stimulates growth, cell reproduction, and regeneration, playing key roles in body composition and metabolism.
FULL EXPLANATION
Growth hormone (GH) is produced by the pituitary gland and has wide-ranging effects on growth, body composition, and metabolism. It stimulates muscle growth, bone density, and fat metabolism while promoting tissue repair and immune function.
GH is released in pulses, with the largest pulse occurring during deep sleep. Natural GH production declines significantly with age, contributing to age-related changes in body composition and recovery capacity.
WHY IT MATTERS
Optimal GH supports lean mass, bone health, recovery, and metabolic function. Supporting natural GH release may help maintain youthful body composition and vitality.
HOW TO IMPROVE
Support natural GH release through deep sleep optimization, high-intensity exercise, fasting periods, adequate protein, and maintaining low body fat.
NORMAL RANGES
Fasting GH varies widely due to pulsatile release. IGF-1 (a more stable marker) is often used instead. IGF-1: 100-300 ng/mL for adults, declining with age.
RELATED TERMS
Deep Sleep
The most restorative sleep stage characterized by slow brain waves, essential for physical recovery, immune function, and growth hormone release.
Protein Synthesis
The cellular process of building new proteins, particularly muscle proteins, in response to exercise and nutrition.
Testosterone
The primary male sex hormone responsible for muscle mass, bone density, libido, and overall vitality in both sexes.
Time-Restricted Eating
An eating pattern where food consumption is limited to a specific time window each day, typically 8-12 hours.
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