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There is a growing body of evidence suggesting that our internal antioxidant systems follow a circadian rhythm a 24-hour internal clock that regulates everything from sleep to cellular repair
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Dopamine can also be methylated by COMT, generating 3-methoxytyramine, which can be converted to 3-methoxy-4-hydroxyphenylacetaldehyde, hydrogen peroxide, and NH 3 by the enzyme MAO
B., & Frame, J
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