More children are being poisoned by e cigarette liquids. Here's what parents need to know Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Your Children Are Adversely Affected by Your Secondhand Smoke! TEIS, Inc Secondhand marijuana smoke and kids Harvard Health Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN