A generally good video about hormones... good info for women as well, do watch.
At 3:00 vitamin D... 4:00 Dr. mentions how the darker you are, the more sun you need... to get Vitamin D dosage. Low vitmain D is related to alzheimers, smaller brain, etc.. Of course there's many factors. People that take a vitamin D are 40% reduced risk of getting Alzheimers... according to the info here.
Are black people whom go to gloomy climates with low sun... less healthy mentally than their counterparts in sunny areas... in your experience?
Maybe an easy cure for some ills... is to take Vitamin D or go south?
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