what is more harmful weed or cigarette Adding tobacco to cannabis doesn't affect the high, but impacts memory and heart | UCL News Don't smoke it with tobacco:

Don't smoke it with tobacco: scientists suggest ways to make cannabis safer Cannabis The Guardian Smoking Marijuana Vs. Tobacco: What Science Says About Lighting Up Smoking marijuana may be more harmful to lungs than smoking cigarettes, study finds ABC News Does Marijuana Cause Lung Cancer? Keck Medicine of USC Smoking cannabis every day 'shrinks brain but increases its connectivity' Cannabis The Guardian How does cannabis affect the body? National Geographic

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