Recent studies have shown that, for the current experimental
values of M_H, M_t and \alpha_s, the SM scalar potential develops a
second minimum, deeper than the electroweak (EW) one. I will review a simple and efficient mechanism to stabilize the EW vacuum. The mechanism involves
an extra scalar singlet and can be operative in existing see-saw,
invisible axion and unitarized Higgs inflation models.
Mr. Joan Elias-Miro (IFAE)