eli5: If more melanin is advantageous in warm climates, why is less of it advantageous in colder climates? Wouldn’t darker skin still be most advantageous in cold climates where it might occasionally be hot?

Question

eli5: If more melanin is advantageous in warm climates, why is less of it advantageous in colder climates? Wouldn’t darker skin still be most advantageous in cold climates where it might occasionally be hot?

In: 1641

Answer 1

I hate winter time cause I’m always in the office when the sun is out and it’s dark by the time I get off work. I tried vitamin D supplements but maybe I need to increase my dosage.

I always feel livelier in the summer when I’m out doing yard work or hanging out at the pool.