Now Magazine (UK), Feb. 2, '00, p. 42-43 She was a confirmed 20-a-day girl, but Jennifer Aniston has given up smoking after given the sscary news that a friend has cancer. 'I couldn't put tobacco in my body after that,' she admits. 'I've wanted to quit for so long, but it was something that I enjoyed. I guess this was the jolt I needed.' The Friends beauty discared four cartons of Marlboro Lights - the trendy brand smoked by countless showbiz personalities and models such as Kate Moss - and threw out lighters and all ashtrays from her home, even though the other half of Hollywood's hottest couple, Brad Pitt, is said to be sill hooked on the fatal weed. Jennifer quit after an old school friend Lauren Daviss found she had lung cancer... Lauren's mother Gloria says: "She's going to be OK. Jennifer got a shock when she found out, we all did. They've both smoked since their college days." ... After hearing about Lauren, Jennifer 'acted instantly', despite being a smoker for the last 15 years ... It's not just the health issues that are bothering Jennifer, though, as she recently confessed to friends that she was 'sick and tired' of being pictured in the papers puffing away. She's said to have been particularly upset by a photograph taken while out on a Santa Monica shopping trip with lover Brad, which showed her with a cigarette dangling from her mouth and left the otherwise health-conscious star literally fuming at her own bad habits. Up until now the actess smoked a pack of Marlboro Lights a day and admits she's battled for years to quit. But Jennifer denies she smokes to suppress her appetite, even though weight is obviously a contentious issue for the slight star. ... Yet, despite many female smokers fearing they'll pile on the pounds once they stop smoking, this is not thought to be the reason Jennifer kept up the habit for so long. According to her friend, model Brittany Kenna: 'Weight control doesn't come into it. Jen's a typical Greek girl and enjoys a cup of black coffee and a ciggle in the morning. She used to joke it's no worse than breathing in exhaust fumes from traffic or the LA smog, bug she's changed her tune now.' But with Brad still smoking, it remains to be seen if Jennifer can resist taking up cigarettes again. ...