Dr. Lam is it true that nasolabial lines are caused by the malar fat pad sliding downwards due to gravity? Is it proven it really slides downwards or it's just a hypothesis like the going down of the upper eyelids which you say actually don't go down but only deflate due to fat loss.
If the malar pad is really sinking, does it slide with respect to the facial muscles or it is the muscles that get loose and the pad follows them? I am asking because there are claims from facial exercise programs that toning the muscles will raise the pad back to the previous position. If the pad is not attached to the muscles in a rigid way, I don't see how that would happen.
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