Colombia president supports allowing medical marijuana

President Juan Manuel Santos signalled his support Thursday for a bill that would allow the medical use of marijuana in Colombia.

Marijuana use shrinks teenagers` brains: Experts

Frequent marijuana use among teenagers can lead to cognitive decline, poor attention and memory and decreased intelligence quotient (IQ), psychologists warn.

Frequent marijuana use leads to memory problems, low IQ in teens

A new study has revealed that frequent marijuana use can lead to cognitive decline, poor attention and memory, and decreased IQ in teenagers and young adults.

Young users receive pro-marijuana tweets everyday

A new study has revealed that marijuana-related Twitter account sent out more than 2,200 messages to some 1 million followers, 73 percent of whom were 19 years old or younger and young users receive such tweets daily.

Indo-Canadian duo develops device to detect drug usage

Two Canadians of Indian origin have developed a device that detects marijuana in a person`s breath. Police say it helps to find if a driver is high on the contraband drug.

Marijuana use linked to disrupted sleep

Marijuana use is associated with daytime sleepiness and impaired sleep quality at night, a new study led by an Indian-origin scientist has found.

Business group fights Uruguay`s marijuana rules

A business group in Uruguay, the first country to legalize the production and sale of marijuana, is challenging a decree barring employers from punishing employees who come to work high.

Wiz Khalifa arrested for travelling with marijuana

Rapper Wiz Khalifa was arrested at an airport for travelling with 0.5 grams of marijuana but was released later with misdemeanour charges.

Uruguay`s president signs marijuana legalization rules

Uruguay`s President Jose Mujica on Tuesday signed off on regulations for his country`s landmark legalization of its marijuana market.

Uruguay to legalise marijuana sale

The Uruguayan government has unveiled plans to legalise the production and sale of marijuana, a media report said Saturday.

Bahamas police seize drugs worth 1.3 million USD

Police in the Bahamas have arrested two boaters whom officers say were carrying bales of marijuana worth an estimated 1.3 million USD.

Marijuana may cause heart problems in young adults

Young adults who smoke marijuana may be at risk for serious or even fatal heart problems, according to a study by French researchers on Wednesday.

Canadians rally to legalise marijuana

Several thousand people came out in Canada`s biggest cities to call for the legalisation of marijuana -- a yearly protest that happens internationally.

Casual marijuana use could lead to brain abnormalities in young adults

Researchers have said that the size and shape of two brain regions involved in emotion and motivation may differ in young adults who smoke marijuana at least once a week.

First public weed vending machine debuts in US

The so-called Zazz machine was delivered to the Herbal Elements Medical Marijuana Dispensary in Avon, Colorado last week.

Marijuana behind Amanda Bynes` erratic behaviour?

Actress Amanda Bynes` mother says her daughter`s erratic behaviour can be blamed on marijuana intake.

Colorado made $3.5 million in marijuana tax in first month

Marijuana sales in Colorado brought in $3.5 million in tax revenues and fees in the first month retail pot outlets were allowed, the western US state said Monday.

Marijuana may halt HIV spread

A new study has shown that chronic intake of THC, the primary psychoactive ingredient in marijuana, can protect critical immune tissue in the gut from the damaging effects of HIV infection.

Growing medical marijuana is big business in Canada

An hour`s drive south of Canada`s capital, past snow-covered pine forests and farmland, Chuck Rifici is growing marijuana at an old Hershey`s factory.

Mexico City mulls legalising sale of marijuana

Leftist lawmakers in Mexico City`s legislature introduced a bill that would legalise the sale of marijuana within the capital, expanding on a national law that already decriminalises the possession by users of small amounts of pot throughout the country.