Now 5 years old, the 125 GeV Higgs boson is no longer a toddler. Even if well-established in some decay channels predicted by the standard model of particle physics, other predictions by the same model still need confirmation. Since 2015, the LHC increased energy has been providing more data that is being used to explore the properties of the 125 GeV Higgs boson in unprecedented detail. It is also opening the doors for searches involving this elementary scalar particle and providing the ability to search for more such scalars, possible members of BSM Higgs sectors.
We will review the existing information on the 125 GeV Higgs boson, touching upon recent results, and putting some didactic emphasis on the lessons learned in its search, discovery, and subsequent measurements.