toxic substances in cigarettes Chemicals and Tobacco: What's Burning? Smoking: Effects, Risks, Diseases, Quitting

Carbon monoxide stops the blood from carrying as much oxygen round the body

Some types of cannabis, such as hemp, contain many cannabinoids but are low in THC

E-cigarettes boost the risk of heart attack Research we're watching Image: Neydtstock/Getty Images Electronic cigarettes, which are battery-operated devices that create a nicotine-filled vapor, are often touted as a less-risky alternative to conventional cigarettes

Its important to consult with a healthcare professional for guidance on smoking cessation methods

Although five minutes may not seem like a long time, it may be sufficient to offer smokers a critical window to rethink what they are doing and perhaps leave a situation where the risk of relapse is high, Sayette said