Know the facts about CBD products

The extract from the cannabis plant is the hot new treatment for all kinds of ailments, but don't buy into it just yet.

Cannabidiol (CBD), extracted from the cannabis or hemp plant, has been promoted as the latest miracle cure for everything from aches and pains to anxiety and sleep disorders. There is a good chance you've heard a friend share his or her story about the wonders of CBD.

But is it miraculous — or just a mirage?

"CBD is being used over the counter in a range of ways that is not supported by the science," says Dr. Jordan Tishler, instructor of medicine at Harvard Medical School and president of the Association of Cannabis Specialists. "There is still much we don't know. But aggressive marketing, hype, and word of mouth have made CBD like a drug version of the emperor's new clothes. Everyone says it works, but lab studies suggest that it's really not what people think."