  The critical values for the mass of the Higgs bosons, at which the theory
becomes strongly interacting, are calculated using the equivalence theorem, at
high energies this allows us to replace the longitudinally polarized gauge
bosons in the $S$ matrix for the corresponding Goldstone bosons. An appropriate
ansatz for defining the would-be Goldstone bosons in the case of an additional
neutral current, beyond the minimal standard model, is also presented.
