  In a weakly disordered metal electron interactions are responsible for both
decoherence of the quasi-particles as well as for quantum corrections to
thermodynamic properties. We consider electrons which are interacting with
two-level-systems. We show that the two-level-systems enhance the average
equilibrium (``persistent'') current in an ensemble of mesoscopic rings. The
result supports the recent suggestion that two puzzles in mesoscopic physics
may be related: The low temperature saturation of the dephasing time and the
high persistent current in rings.
