your body adjusts to fasting by increasing hunger hormones and sensitivity to them. This can lead to overconsuming food when its available.
additionally roads and traffic have also reduced effective social and play areas even as vehicles become more dangerous to pedestrians.
Its possible even that the evolutionary adaptation to cars is that low energy kids have less risk of injury/death while more high energy kids get hit by cars, possibly selecting for less active kids generation to generation (notably it may also be selecting for taller heights)
I’m interested in the idea of selection adaptation and motorised vehicles, however I think selective adaptation takes much much much longer than motorised vehicles have been with us so far. We’re talking hundreds of years for selective adaptation to take affairs.
I could be wrong about that though.
The more likely adaptation reason currently is that we like over eating. Food used to be scarce, and when it was available you ate as much as you could or you died. The survivors of that scenario are the ones that made us, and as such we love eating lots when it’s there.
I think our fascination with sweet foods makes sense from this perspective also. Our ancestors exposure to sweet foods were mostly fruit. Fruit would have improved their immune system significantly. Unfortunately we’ve since began mass producing sugar which doesn’t offer the same benefits, but our bodies are still set up to love that sweet taste.
car accidents are one of the largest causes of death of people below the age of 35 in the US if I recall. This means its likely one of the largest selection factors for people at or below reproductive age.
your body adjusts to fasting by increasing hunger hormones and sensitivity to them. This can lead to overconsuming food when its available.
additionally roads and traffic have also reduced effective social and play areas even as vehicles become more dangerous to pedestrians.
Its possible even that the evolutionary adaptation to cars is that low energy kids have less risk of injury/death while more high energy kids get hit by cars, possibly selecting for less active kids generation to generation (notably it may also be selecting for taller heights)
I’m interested in the idea of selection adaptation and motorised vehicles, however I think selective adaptation takes much much much longer than motorised vehicles have been with us so far. We’re talking hundreds of years for selective adaptation to take affairs.
I could be wrong about that though.
The more likely adaptation reason currently is that we like over eating. Food used to be scarce, and when it was available you ate as much as you could or you died. The survivors of that scenario are the ones that made us, and as such we love eating lots when it’s there.
I think our fascination with sweet foods makes sense from this perspective also. Our ancestors exposure to sweet foods were mostly fruit. Fruit would have improved their immune system significantly. Unfortunately we’ve since began mass producing sugar which doesn’t offer the same benefits, but our bodies are still set up to love that sweet taste.
I’m rambling a bit, but there you go.
car accidents are one of the largest causes of death of people below the age of 35 in the US if I recall. This means its likely one of the largest selection factors for people at or below reproductive age.
Wild fruits were also not very sweet. They didn’t get that sweet until we started breeding them to be sweeter.