Swinging a golf club is not unlike making cookies or a cake.
Flour is the lower body,
Sugar is the arms.
One provides the base, one provides the kick.
If you have too much of one and not enough of the other, you get sweet sludge or something that tastes like Styrofoam.
Remember when everyone said Cholesterol was bad and everyone stopped eating eggs? Now the consensus is we need some for good health. The right kind. Sound familiar when related to arm movement in the golf swing?