what is hallucinogen persisting perception disorder

Hallucinogen Persisting Perception Disorder (HPPD) Flashbacks Explained

Hallucinogen Persisting Perception Disorder, or HPPD, has caused a stir recently. Hallucinogen use is growing. This is caused by a combination of factors. Some of the increase results from the ease of ordering drugs online. Hallucinogens are popular with many club, party, and music scenes. Moreover, hallucinogens are relatively new drugs. Therefore, science is just…