A doctors' group is stepping up warnings to teenagers as the use of marijuana becomes more mainstream.

FOX's Gurnal Scott with the story:

The American Academy of Pediatrics, in a new report, says the use of pot is not good for teenage brain development, which continues into the mid-20's. That's even if their parents use the drug recreationally and deem it okay for their kids.

Pediatricians say in addition to slower cognitive development, there is a greater risk for addiction when teens smoke pot.

Government numbers show marijuana use is a 'thing' with teens with 40 percent having tried it and 20 percent actively using it. But some doctors do continue to tout strictly medicinal use. For example, in combating seizures that traditional medicines cannot treat.

Gurnal Scott, FOX News.

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