For many of us, the date 4-20 is just another day, but for some teens, it's considered a yearly holiday.
The date is sometimes known as National Pot Smoking Day. So if you believe your child may be participating, what signs do you need to be on the lookout for?
Video: FOX 10's Kristen Keogh talks to an expert from Banner Thunderbird Medical Center, Dr. Michelle Ruha.
Keepin' it Real: A Health Event for Teens April 27, 10am - 4pm Banner Thunderbird Medical Center Conference Rooms 1, 2, 3 & 6 5555 W. Thunderbird Road Glendale, AZ 85306 RSVP: 602-230-CARE (2273) - Seating is limited www.BannerHealth.com/Thunderbird