A negative hand, one of the oldest types of imagery in the world, found in El Castillo. Negative hands were often made using a spit-painting technique in which someone would place their hand on the ...

Concussion and other traumatic brain injuries impact an estimated 69 million people every year, as a result of sports ...

Seattleites chasing psychedelic breakthroughs are packing passports for psilocybin retreats abroad, where the trip is about ...