HealthNose breathing in yoga may calm the mind by slowing brainwaves When meditators take deep breaths through their nose it causes nerves in their nasal passages to fire more slowly, and brainwaves follow suit News
LifeSeals only sleep with half their brain when they're out at sea Northern fur seals mostly sleep with half their brain while they’re at sea, but sleep with all their brain while on land – unlike any other animal studied News