is weed or tobacco better More Americans than ever believe marijuana smoke safer than cigarette smoke, but they're wrong Nicotine, e-cigarettes, cannabis: All pose

For international visitors travelers found with vaping devices face immediate confiscation and significant administrative fines that can reach thousands of dollars

The human body has lots of receptors in the brain and the gut that bind to THC, the psychoactive substance in cannabis that gets users high

It could be prescribed now, you know, and it can be prescribed state by state

Abyssal ocean overturning slowdown and warming driven by Antarctic meltwater

A new product is considered substantially equivalent to an existing product if it has the same characteristics, "characteristics" legally defined as "materials, ingredients, design, composition, heating source, or other features." The law also allows for a finding of substantial equivalence when a product differs in characteristics but raises no new questions of public health