August 15, 2022 8:33 am Watch: Doctors Warn Students, Parents Against Vaping, Tobacco Use As schools across the Bay Area resume classes for the new school year, doctors are warning against the use of tobacco and vaping products, which can damage teens lungs and brains. US & World Videos 3:07 Cinthia's forecast: Sunny, breezy, warming ahead 1:35 AANHPI celebrations in San Francisco's Japantown, Chinatown 2:07 Smash-and-grab thieves hit Sunnyvale jewelry store 0:47 Suspect critically injured following standoff on I-80 in Solano County 1:48 Four tow trucks burned in Concord, Bay Point