  A brief discussion of massive tadpole diagrams and their phenomenological
consequences is presented. This includes predictions of the $\rho$ parameter
and, as a consequence, the mass of the $W$ boson, implications on the charm and
bottom quark masses from the moments, i.e. the derivatives of the current
correlators, and the Higgs boson decay rate. A fairly consistent picture
emerges, with $m_c(3 {GeV})=0.986\pm0.013$ GeV and $m_b(m_b)=3.610\pm0.016$
GeV. Furthermore, fairly stringent predictions for the Higgs decay rate into
photons and gluons are obtained, which will be interesting in increasingly
precise experiments.
