  We review the behavior of the oscillating shear layer produced by gravity
waves below the surface convection zone of the Sun. We show that, under
asymmetric filtering produced by this layer, gravity waves of low spherical
order, which are stochastically excited at the base of the convection zone of
late type stars, can extract angular momentum from their radiative interior.
The time-scale for this momentum extraction in a Sun-like star is of the order
of 10^7 years. The process is particularly efficient in the central region, and
it could produce there a slowly rotating core.
