VitaminD 3 and vitamin 2K

[harm_less]

Which is because our migration to the north meant we received less sun, and therefore had to become more efficient at processing it. The paler we were, the longer we lived...

Whereas, those who remained in central regions had to develop protective physical strategies so they too lived longer.

Same bodies, different environments. Evolution is such a magical process.

Dr. Campbell pretty much sums up the vit D situation the same. Dark skins in high latitudes don't fair well due to their low vit D levels so are more susceptible to viral infection.

Either way humans move faster than evolution can keep up.