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Your brain is protected by a blood-brain barrier that can protect the brain from toxins
GH secretion in women is higher in the follicular phase, when estrogen peaks, than in the luteal phase
A note on body composition: If you carry less fat around your midsection, gently pinching a fold of skin before injecting helps ensure the needle reaches fatty tissue rather than muscle
The in vitro L-cell row gets similar treatment, described as suggesting biological plausibility but not predictive of human response
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