What are the side effects of secondhand marijuana smoke?

4/16/20–Studies have shown that although possible, it is unlikely that a person who breathes in secondhand marijuana smoke will get high. However, if there is poor or no ventilation, the likelihood of a person becoming high from the surrounding smoke drastically increases. In short, for a contact high to be possible, a person would need to be in close contact with highly concentrated marijuana smoke for an extended period in a poorly ventilated area. Read