It represents the time from the end of ventricular depolarization to the start of ventricular repolarization. ST elevation may indicate myocardial infarction or pericarditis. ST depression may indicate ischaemia.
Marijuana has been illegal for less than 1% of the time that itâs been in use. Its known uses go back further than 7,000 B.C. and it was legal as recently as when Ronald Reagan was a boy.The marijuana (hemp) plant, of course, has an incredible number of uses.arijuana has been illegal for less than 1% of the time that itâs been in use. Its known uses go back further than 7,000 B.C. and it was legal as recently as when Ronald Reagan was a boy.
By Radley Balko By Radley Balko August 5, 2014. Since Colorado voters legalized pot in 2012, prohibition supporters have warned that recreational marijuana will lead to a scourge of âdrugged driversâ on the stateâs roads. They often point out that when the state legalized medical marijuana in 2001, there was a surge in drivers found to have smoked pot.