Although it's encouraging, they do mention that the reduction in the BMI also have an effect (they take it into the consideration by lowering the β −0.092 to β −0.066 (P < 0.001)).
Just skimming through it, it's possible there are direct benefits, but it could also be other environmental factor. This study will most likely generate others that give us more insight in the future.
Just skimming through it, it's possible there are direct benefits, but it could also be other environmental factor. This study will most likely generate others that give us more insight in the future.