A.Smiling can reduce heart rate.B.Smiling may lower blood presure.C.They the bodnkitzuibs ia boos iod2Af0o02shnn12ao99论D.Study found that smiling can...
A.Smiling can reduce heart rate.B.Smiling may lower blood presure.C.They the bodnkitzuibs ia boos iod2Af0o02shnn12ao99论D.Study found that smiling can...