Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN E cigarette use is linked to higher heart attack risk, especially in former smokers Smokers and Vapers May Be at Greater Risk for Covid 19 The New York Times Vaping substantially less harmful than smoking, largest review of its kind finds King's College London Can Vaping Make Asthma Worse? Dr. Mayank Shukla