Exposure to Thirdhand Smoke Harms the Health of Pregnant Women Thirdhand Smoke Resource Center Asthma and Allergy Foundation 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 is Secondhand smoke and secondhand aerosol Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke. The risks of secondhand smoke Tommy's Woman & Child Care Hospital