"Researchers would like to take treatments away from disabled people and tell them to just crack on with it"
[I]n late 1984 and 1985; this rapid increase in use and availability was named the "crack epidemic", which began to wane in the 1990s. The use of another highly addictive stimulant drug, crystal meth, ballooned between 1994 and 2004.
https://dictionary.cambridge.org/us/dictionary/english/crack...