Since marijuana became legal in Colorado, health experts at Children's Hospital Colorado report they're finding more newborns have been exposed to pot - both in the womb and through breastfeeding.
They say they don't have specific numbers, but they're seeing more babies born to marijuana-smoking mothers.
Doctors say it definitely has an effect upon child development when it comes to their learning, behavior, attention and impulsivity.
What are the long-term problems for teens that smoke marijuana? Dr. Linda Mintle, chair of the Division of Behavioral Health at Liberty University's College of Osteopathic Medicine, answers this and more.