Lung damage was greater in those who smoke marijuana and tobacco compared with tobacco-only smokers, a preliminary study found.
Mandatory Credit:	Adobe Stock

Lung damage was greater in those who smoke marijuana and tobacco compared with tobacco-only smokers, a preliminary study found.
Mandatory Credit: Adobe Stock

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Marijuana smoke harms lungs in tobacco smokers, study finds

Smoking weed while being a tobacco smoker may increase damage to the respiratory system, a new study found.