Weed is not good for your heart, studies say - CNN

"The American Heart Association recommends that people not smoke or vape any substance, including cannabis products, because of the potential harm to the heart, lungs and blood vessels," said Dr.

Rose Marie Robertson, the deputy chief science and medical officer for the American Heart Association, in a statement.

The new scientific statement, published Wednesday in the AHA journal Circulation, examined existing research on the connection between cannabis and the heart.

The statement found using weed has "the potential to interfere with prescribed medications" as well as "trigger cardiovascular conditions or events, such as heart attacks and strokes," said clinical pharmacologist Robert Page II, who chaired the medical writing group for the statement.

Anyone planning to use marijuana should discuss possible risks with their health professional first, said Page, who is a professor in the department of clinical pharmacy and physical medicine/rehabilitation at the University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences in Aurora, Colorado.

"If people choose to use cannabis for its medicinal or recreational effects, the oral and topical forms, for which doses can be measured, may reduce some of the potential harms," Page said in a statement.

"It is also vitally important that people only use legal cannabis products because there are no controls on the quality or the contents of cannabis products sold on the street," he added.