How have technological developments affected human evolution?

Answer 1

According to an article in Science magazine this fall, cooking food instead of eating it raw could have sped up the evolution of human intelligence.

Cooking makes more of the food's nutrients available. By eating the same amount of food, but cooked, more metabolic energy became available, and brains take a lot of energy.

It also appears that cattle farming tended to fix the ability for an adult to digest milk in European populations.

Answer 2

I don't think recent developments will affect evolution. It usually takes a mutation or thousands of years for any significant changes in evolution. If anything has affected it, I'd say changing to homo-erectus a long time ago, or when we started to use tools. But who knows, if this obesity thing continues, we might end up getting improved hearts. lol

Answer 3

I think the biggest difference will be that survival, prosperity, and sexual attractiveness depends much more on intelligence and mental activity than on physical strength. Even more so if the intelligent people are intelligent enough not to be killed first by obesity and a sedentary lifestyle. But then, those effects usually happen after mate selection and reproduction.