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Some regions are worse affected than others, and the level of air pollution varies between seasons and times of day

At Top Smoke, we believe in providing adults with accurate information to help them make informed choices

Consult a healthcare professional before using them or if any side effects occur

"The chemistry of this is very interesting," says Neal Benowitz, professor of medicine at the University of California, San Francisco and a leader of the California Consortium on Thirdhand Smoke

Future directions Oxidative stress represents a significant challenge to embryonic development that is capable of disrupting crucial cellular processes and leading to growth retardation and malformations in the embryo and fetus