Richard Miles is known to have used cannabis, but the police say they've no reason to believe his death was drugs-related.

People who use cannabis regularly over a long period may find there are certain situations in which they come to rely on the drug.

Since 1937, 20% to 37% of the youth in the United States have used cannabis.

More than a third (39%) reported using cannabis to relieve withdrawal symptoms.

Of the entire population, those aged 30 to 39 years were the most likely (54.6%) to have used cannabis at some time in their lives.

Those aged 30 to 39 were most likely to use cannabis every day.

The survey asked if the subjects had used cannabis in the last 12 months to control some of their symptoms.

Obesity rates in those who didn't use cannabis were 22% and 25.3%.

Did you continue to use cannabis despite having physical or psychological problems with it?

He used medicinal cannabis for pain control from 2005 to 2008.