Happiness is a gamma wave. Via Oddity Central:
Matthieu Ricard was declared the happiest man on Earth by a group of scientists after it was discovered his brain produces a level of gamma waves never before reported in the field of neuroscience.
A former molecular geneticist who left his life and career behind to discover the secrets of Buddhism, Ricard is now one of the most celebrated monks in the Himalayas and a trusted advisor of the Dalai Lama. In 2009, neuroscientist Richard Davidson wired up the French monk’s head with 256 sensors as part of a research project on hundreds of advanced practitioners of meditation.
The scans showed something remarkable: when meditating on compassion, Ricard’s brain produced a level of gamma waves linked to consciousness, attention, learning and memory that were never even reported before in neuroscience literature. Furthermore, the scans scans also showed excessive activity in his brain’s left prefrontal cortex, giving him an abnormally large capacity for happiness and a reduced propensity towards negativity.