Everyday items you have and use daily around the house, may be getting your kids high.Janet Choi has that story and more in today's health watch report.Health experts are warning that more and more children are inhaling chemicals found in the home to get high.New data finds that 12 year olds are more likely to inhale common household products than than marijuana or cigarettes.Products that children are sniffing include shoe polish, glue, and aerosal computer cleaners. Inhaling these products can cause immediate death from cardiac arrest.The Centers for Disease Control and Prevention is reminding college students that the best way to stay healthy for Spring Break is to get the H1N1 vaccine.Flu activity has slowed in recent weeks, but some colleges and universities have reported more HiN1 activity on their campuses in recent weeks.The CDC says with many students traveling for the break, it's important to get vaccinated and use common sense precautions - like hand washing - to prevent the spread of flu.And new research finds that knee replacement surgery has a very high rate of success.One year after the operation - only 4% of all patients were unhappy with the outcome.Those dissatisfied tended to have persistent pain after the operation.That's a look at today's top medical stories. I'm Janet Choi, CBS News, New York.