which is more harmful smoking cigarettes or weed Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping also bad for you. E-cigarettes Teens Now Using Marijuana More

A lung screening is a low-radiation CT scan

All SSS participants were adults, Singapore Citizens or PR, and current smokers who had agreed to be re-contacted for follow-up research

Eat your veggies: One study found that people who carried the CYP1A1*2 variant had a greater reduction in colon cancer risk with a diet high in polyphenols (found in veggies and fruit) than those without the variant.[ref] Grapefruit: Grapefruit juice inhibits CYP1A1, which is something to be aware of if you consume a lot of grapefruit.[ref] Supplements and CYP1A1: Natural supplements can also affect CYP1A1 expression

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