Robert Sanders, “Sleep strengthens muscle and bone by boosting growth hormone levels,” UC Berkley News, 8 September 2025.
“As every bodybuilder knows, a deep, restful sleep boosts levels of growth hormone to build strong muscle and bone and burn fat. And as every teenager should know, they won’t reach their full height potential without adequate growth hormone from a full night’s sleep.”
“People know that growth hormone release is tightly related to sleep …”
“Because growth hormone regulates glucose and fat metabolism, insufficient sleep can also worsen risks for obesity, diabetes and cardiovascular disease.”
“Somatostatin and GHRH surge during REM sleep to boost growth hormone, but somatostatin decreases and GHRH increases only moderately during non-REM sleep to boost growth hormone.”
“During sleep, growth hormone slowly accumulates to stimulate the locus coeruleus and promote wakefulness, the new study found. But when the locus coeruleus becomes overexcited, it paradoxically promotes sleepiness …”
“This suggests that sleep and growth hormone form a tightly balanced system: Too little sleep reduces growth hormone release, and too much growth hormone can in turn push the brain toward wakefulness,” Silverman said. “Sleep drives growth hormone release, and growth hormone feeds back to regulate wakefulness, and this balance is essential for growth, repair and metabolic health.”
“Because growth hormone acts in part through the locus coeruleus, which governs overall brain arousal during wakefulness, a proper balance could have a broader impact on attention and thinking. “Growth hormone not only helps you build your muscle and bones and reduce your fat tissue, but may also have cognitive benefits, promoting your overall arousal level when you wake up,” Ding said.”