Here are just a few of the health effects you may want to know:
Links
[1] https://www.cdc.gov/features/marijuana-health-effects/index.html
[2] http://rethinkpot.org/tags/brain
[3] http://rethinkpot.org/tags/heart
[4] http://rethinkpot.org/tags/lungs
[5] http://rethinkpot.org/tags/mental-health
[6] http://rethinkpot.org/tags/poisoning
[7] http://rethinkpot.org/tags/pregnancy
[8] http://rethinkpot.org/tags/driving
[9] http://rethinkpot.org/tags/cdc
[10] http://rethinkpot.org/tags/stroke
[11] http://rethinkpot.org/tags/side-effects
[12] https://www.cdc.gov/marijuana/health-effects.htm
[13] https://www.cdc.gov/heartdisease/signs_symptoms.htm
[14] https://www.cdc.gov/stroke/
[15] https://www.cdc.gov/marijuana/pdf/marijuana-pregnancy-508.pdf
[16] https://www.cdc.gov/marijuana/pdf/marijuana-driving-508.pdf