As an additional example to that of the trefoil peptides noted above, the peptide EGF (epidermal growth factor) is produced in human milk to promote growth of the gastrointestinal tract in newborn infants, but the same peptide aggressively stimulates the growth of breast cancer cells in adults
reactive control during task switching performance
Life at the extreme limit: phenotypic characteristics of supercentenarians in Okinawa
Most people do well with once-daily application of a 1-3% GHK-Cu product
When to seek medical advice Contact a GP promptly if symptoms are persistent, worsening or unexplained, especially if you have numbness, pins and needles, balance or walking problems, weakness, memory changes, breathlessness, palpitations or vision changes
However, high-dose niacin (as a medication for cholesterol) is generally not recommended during breastfeeding, because significant amounts could enter milk and cause unwanted effects in the nursing infant (flushing, for example)