Dutch researchers found no significant difference between dementia patients given THC pills and those given placebos.
Researchers warn there are no proven benefits and parents often overstate how effective cannabis is for their children.
State officials will regulate the sale and taxation of cannabis products for adults 21 years of age and older.
The South American country’s experiment adds to an international trend of easing restrictions on marijuana for medical or personal use.
Bill would make it harder for people to use government benefit payments to buy marijuana in states where the drug is legal.
Pot smokers reported using the drug to help them feel better, but it may lead to a vicious circle of dependence.
Case could set precedence for other Washington communities that want to block the sale of marijuana.
Officer reassigned after a review found he wrote about 80 percent of marijuana tickets.
With the clock ticking down to the start of legal weed sales in Washington state, store owners hoping to start selling on Tuesday are consumed by details as they try to make sure there’s pot on the shelves.
Marijuana legalization advocate says campaign falls well short of signatures needed to put initiatives on November ballot.