By 125,000 years ago, the expected mean body weight of the population in Africa was 50% of what would be expected, attributed to the presence of humans.

“And you have this paper by Smith of 2018 yes and we can pull it up whenever you're ready I can go to the screen show anyway she saves bury the paper she says that by by 125,000 years ago they expected me body weight of population in Africa was 50 percent or the actual was 50 percent half of what would expect for such a large continent because the body so that's why I don't know exactly but it happened it started in Africa and he started and she said well she said this she attributed to the presence of humans in Africa during that period”