According to the National Institute on Drug Abuse some of the medically problematic short-term effects of marijuana include:
- Problems with learning and memory
- Distorted perception (sights, sounds, time, touch)
- Poor motor coordination
- Increased heart rate
For a more detailed list of marijuana's effects, please see The Health Effects of Marijuana
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National Institute on Drug Abuse. "Marijuana." DrugFacts Updated January 2014
National Institute on Drug Abuse. "Want to Know More?- Some FAQs about Marijuana." Marijuana: Facts for Teens Updated October 2013
National Institute on Drug Abuse. "Marijuana." Research Report Series Updated July 2012
The Partnership at DrugFree.org. "Marijuana." Drug Guide. Accessed April 2014.