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In Parkinson's disease, dopamine-producing neurons in an area of the brain called the substantia nigra die off as a result of free radical-based damage
Often referred to as the bonding hormone, oxytocin is naturally produced by the body and plays a critical role in social interaction, trust, and emotional connection
5 The average intake of vitamin B 12 in the United States is 3.4 mcg per day, and the recommended dietary allowance is 2.4 mcg per day for adult men and nonpregnant women, and 2.6 mcg per day for pregnant women
The New England journal of medicine
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