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Warburg and Christian 1936)
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Souza, S
Natural growth hormone secretion peaks during deep slow-wave sleep (SWS) stages 3-4, typically 30-90 minutes after sleep onset
Site rotation importance Repeatedly injecting in the same location can cause local tissue changes including lipohypertrophy (abnormal fat accumulation) or lipoatrophy (fat loss creating depressions)
Key research: NAC helps reduce oxidative stress and supports detoxification pathways (PMID: 11470772)
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