Could be correlated to issue 1 with plastic containers. In the US, soda generally comes in aluminum cans or 2L plastic bottles, whereas coffee and tea aren't.
Anyways, I still think sedentary lifestyles and stress play a larger role than plastics, but those are harder to isolate and control for researchers.
Anyways, I still think sedentary lifestyles and stress play a larger role than plastics, but those are harder to isolate and control for researchers.