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.
The legalization of marijuana in America has been moving at a breakneck speed in recent years. In 2016, marijuana legalization in America reached a tipping point: Medical marijuana became legal in half of the 50 states. Election 2016 brought additional states into the fold: Now nine states and Washington, D.C., allow adult-use recreational marijuana; 29 states have approved medical marijuana programs. Related news on legal marijuana in the U.S.