Harry Angstrom
Striker
Most long distance champions these days are Kenyans/Africans. They've evolved to be able to run for long times without water and suffer less from fatigue. Look at Mo Farah, totally dominates the sport.
Obviously if you go back 20, 30, 40 years there were less Kenyans in the sport so less Kenyan champions, but nowadays with National sports funding and grants a lot more Africans get the chance to compete.
Some races are naturally better at things than others, that's just a fact. You'll never see an Eskimo long distance runner.
The drugs programme helps as well.
I also read somewhere that the awful process of slavery ensured that only the biggest and strongest people would be picked and traded by the slave owners, and given the chance to procreate etc.
This has been dramatized on films such as 12 Years A Slave, and also on Django Unchained, where we saw slaves lined up and 'shown off' for having good physical attributes.
I also read that the reason there seem to be lots and lots of extremely attractive women from Eastern Europe is because of the wars that have occurred there. As the men all went off to war, some returned, some didn't. The ones that did return home were severely outnumbered by women, and could pick and choose the most attractive to 'make babies with', and the less attractive ones were left childless.
Dunno how true these theories are, but a good story teller never lets the truth get in the way
Not that long a time in the evolutionary process.