Marijuana use among U.S. teens has risen since the early 1990s, even as alcohol and tobacco use has fallen

From Heathline, "Teenagers in the United States are using less alcohol and tobacco today than they did in the early 1990s, but marijuana use has risen sharply during that time, a new study shows."

This comes at a time when 33 states and the District of Columbia have legalized medical or recreational marijuana, or both. This study doesn't show how marijuana use has changed in states that legalized recreational marijuana.

But the overall trend in the country is toward greater use of marijuana among high school students.

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