Hi Pierce,
The question that Americans might ask is why despite spending more on their health care than comparable Nations,their longevity is almost five years shorter...Blaming obscure nutrients in food is not the answer....Canadians are broadly similar People but live far longer...Why?
OK, here goes. African-Americans went through a genetic bottle such that they are larger than their distant cousins in Africa. Larger people tend to have a higher ratio of body mass to organ mass, and so the organs don't work as well, and also, there are more cells, so more chances at developing cancer - all this relative to smaller people within the same genomic population - and yes, elephants don't get cancer because evolution has made that so.
![Roll Eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Oh, and larger people can get REALLY LARGE with the modern junk food.
Also, biological energy (actually exergy
![Roll Eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
) is spent on melanin and strong sweating capacity, and Vitamin D is harder to produce relative to the level of insolation; this is why any population that moves from a tropical region to a boreal region inevitably loses melanin, while similarly, any population that moves in the other direction inevitable gains melanin, so as to protect from skin cancer.
Folks might try saying that the bad health stats for A-As is due to poverty, racism, etc., but I think even after those factors are factored out, there are the reasons I had mentioned. High blood-pressure is far more prevalent with A-As (which is why so many blood-pressure Rx commercials from the 70s & 80s featured them), and it's also the reason for higher rates of maternal health issues, like when that tennis player, who one would think was in great shape and had access to top-flight care, had a life-threatening pregnancy.