Fewer road deaths after medical marijuana legalised

An American study has found that laws legalising medical marijuana have resulted in a nearly 9% drop in traffic deaths and a five percent reduction in beer sales.

The economists analysed traffic fatalities across the US, including the 13 states that legalised medical marijuana between 1990 and 2009.

In those states, they found evidence that alcohol consumption by 20- to 29-year-olds went down, resulting in fewer deaths on the road.

The study showed that drivers under the influence of marijuana tend to avoid risks, in contrast to drivers under the influence of alcohol.

Read more at University of Colorado Denver and Montana State University