Overdosing on marijuana is rare, but does occur. Because marijuana use is popular, even in areas where it is illegal, people who use marijuana contest that it cannot lead to any kind of overdose, even though science has shown this to be false. While severe, fatal marijuana overdoses are quite rare, mild to moderate marijuana overdoses do occur and create unpleasant sensations that typically resolve on their own. This non-fatal type of overdose is often referred to as “greening out” or “whiting out.”
Typically, most people who use marijuana will not experience an overdose unless they are using highly concentrated marijuana or are using strong marijuana without any previous exposure to marijuana.