New York is seeing the hidden toll of legal weed: violence, psychosis and mayhem
Briefly

"K2 became a scourge in New York City about a decade ago. This unregulated substance - composed of plant material sprayed with hallucinogenic chemicals - was associated with erratic, sometimes violent, behavior, in some cases reducing users to a ‘zombie-like’ state."
"New York cracked down on K2 by making the production of synthetic cannabinoids illegal in 2012 and banning their sale entirely in 2015. The city's health department launched an ad campaign warning users: 'K2: 0% Marijuana; 100% Dangerous.'"
"Pro-marijuana advocates have touted such studies to press for decriminalization or outright legalization of marijuana - with great success. However, K2 has persistent appeal."
Read at New York Post
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