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Efficacy of melatonin for sleep disturbance in middle-aged primary insomnia: a double-blind, randomised clinical trial
WARNINGS: Do not use if pregnant or planning to become pregnant or breastfeeding
The concentration of this peptide in human plasma continues to drop with aging past late teenage years and this drop exceeds 55% by age 55
The disc relies on diffusion, a slow process where nutrients seep in from surrounding tissues through the endplates
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