Weight-loss surgery -- who should have it? Join this Web chat Friday to learn more

Have questions about the Lap-Band? (Small wonder considering the news this week.) But here’s a chance to get some answers about weight-loss surgery in general. Sure, you may know that for some obese people, it could add years to their lives. But sorting out who’s eligible and for what procedure can be confusing. Here’s an expert ready to help.

Dr. Brett Cohen will be the guest at a live Web chat Friday (12:30 p.m. EST, 11:30 a.m. CST; 9:30 a.m. PST). He specializes in gastric bypass surgery, laparoscopic band surgery and similar procedures at Hollywood Bariatrics in Hollywood, Fla.

The surgery, no matter what procedure is used, means quick weight loss. But patients still need to follow a diet and exercise plan to keep it off. MayoClinic.com offers these guidelines and requirements for people thinking about it.

So read up on the procedures and then join the online discussion.