A lack of serotonin is found in people with depression. I have not studied up on it to see ‘which comes first’. Does the lack of serotonin help cause the depression or does the depression cause the lack of serotonin. Interesting.
If you have never had that deep, dark, nasty, hurts in your guts stuff, then you are indeed fortunate muawiyah. I hope it stays that way for you!!
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All days are not sunny!