. >>> we have breaking news on beyonce's twins and ben afflec is making a personal revelation. we have more on that and what it could mean for his career. ck. as little as 12 hours. visible results in but can it fix this teen's skateboarding mishap? nope. so let's be clear: clearasil works fast on teen acne, not so much on other teen things. cough doesn't sound so good. take mucinex dm. i'll text you in 4 hours when your cough returns. one pill lasts 12 hours, so... looks like i'm good all night! some cough medicines only last 4 hours. but just one mucinex lasts 12 hours. let's end this. >>> "world news now" continues after this from our at 15, i was addicted. by 40, i'll have lung disease. at 50, i'll die of a heart attack. dr. regina benjamin: cigarette smoke causes immediate damage that leads to health problems, even death. those who quit or die are being replaced by a new generation of smokers. i'm dr. regina benjamin, united states surgeon general. go to cdc.gov. learn how to make our next generation tobacco-free. you're in a group most likely to develop skin cancer, inclu