  A light CP-even Higgs boson with a mass of around 10 GeV could explain the
recent BNL measurement of the muon anomalous magnetic moment. This observation
is based on a general CP-conserving two Higgs doublet extension of the Standard
Model with no tree-level flavor changing neutral current couplings. The Higgs
mass is constrained by experiments at CESR and LEP to be less than twice the
lightest B-meson mass and greater than (roughly) the Upsilon mass. It may be
possible to exclude or discover such a Higgs boson by fully analyzing the
existing LEP data.
