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by slibhb 329 days ago
> That is not what I said (per my comment "Yes, sure, lifestyle has something to do with any or all of these.") But it seems likely we'll find that lifestyle and diet are not the only cause, maybe not even the primary one.

What would it even mean for lifestyle choices to directly cause some condition?

Attributing causation is largely subjective (up to a point). It's like saying "flipping the light switch didn't turn off the lights, rather it was the cessation of the flow of electrons".

> So... cardiovascular problems can be "prevented" with those simple measures? It seems likely there are some non-smoking marathoner vegans that have died of heart attacks. But maybe he was mis-translated.

Eating right, not getting fat, and exercising dramatically lowers the risk of heart disease. Some people who do all that will still get heart disease due to some congenital condition. But the vast majority of heart disease can be avoided.

2 comments

> What would it even mean for lifestyle choices to directly cause some condition?

Eating a diet largely of white rice directly causes beriberi. At least 9/10 people will get beriberi if they eat a diet that's mostly white rice. The median human body needs a certain amount of thiamine to operate properly, and without that certain body functions will cease to occur properly.

Eating too much spinach will cause kidney stones, but by exacerbating a different underlying cause (not directly). 9/10 people will not get kidney stones by eating too much spinach. Making the lifestyle choice to eat smaller amounts of spinach than the general population will protect against kidney stones, but it doesn't mean that spinach is bad to eat.

Without knowing the difference in bodily makeup that allows spinach to influence the occurrence of kidney stones, doctors will vilify spinach. But once the bodily factor that causes this will known, they'll either be able to treat that or recommend lifestyle (diet) changes specifically to the people who have that mutation, rather than vilifying spinach in general.

Yep, totally agree with your points.

>What would it even mean for lifestyle choices to directly cause some condition?

The glib answer would be something like woodworking and missing fingers :-)

But there are plenty of people (not me!) who believe, for example, that obesity and type-2 diabetes are directly caused by overeating and/or lack of exercise.

I follow the same logic you do, even though I disagree with what you are saying.

Lifestyle choices increase the risk of these diseases but if they caused the disease, everyone who ate the diet would get the disease, and we know that is not true.

The difference is crucial because we know genetics plays a role as well so matching diet and genetics would be useful.

Perhaps I'm mis-stating something then, because I agree with you. (Just clarified my post in case that was the issue.)