The Health Development Institute conducted a study to investigate drug use among Estonian residents. The institute sent an email followed by a questionnaire to a sample of 5,000 individuals. A 2018 study revealed that approximately a quarter of Estonian adults reported some drug use in their lifetime, with cannabis being the most frequently cited substance. Photo: Kristo Niglas/Pärnu Postimees Topics: #drug #institute #use Post navigation Sander Danil became the successor of Peeter Koppeli New studies show that the universe may be shaped like a pancake, not a croissant