Health

Puerto Rico enacts medicinal marijuana law

The depleted government coffers of bankrupt Puerto Rico will take in $50 million a month now that a law allowing the use of marijuana for medicinal purposes has taken effect, the governor said.

Health

Runners! Put a (mattress) spring in your step

Researchers have designed a new type of running shoe which incorporates springs into the sole for the first time. Prototypes of the trainer, developed to reduce injury risk, will be on show at this year's Royal Society Summer ...