To carb or not to carb...that is the eternal dieting question...Michelle Gielan has that story and more in today's health watch report.(oncam)The American College of Obstetricians and Gynecologists has released new guidelines concerning cervical cancer screenings.(wipevo)The group now says women should wait until age 21 to have their first Pap SMEAR AND THEY can be rescreened less often than previously recommended.Most women younger than 30 should undergo cervical cancer screenings once every two years and those 30 and older --- once every THREE years.The advice comes on the heels of controversial new government guidelines about mammograms released earlier this week.(wipevo)When it comes to losing weight... a low carb diet may work as well as a high-carb one.Researchers studied nearly 150 men and women who lost weight after cutting their calorie intake for 3 months.People who followed a high carb diet the FOLLOWING year -- had the SAME success keeping the pounds off as those who stuck to a low carb diet.(wipevo)French researchers say they've found a way of using human embryonic stem cells to create new skin.The findings could one day lead to new treatments that help burn victims.For decades, patients have benefited from a technique that uses a person's own skin to create new skin cells,But the process takes about three weeks -- putting patients at risk for dehydration and deadly infections.(oncam)Those are some of today's top medical stories.I'm Michelle Gielan - CBS News - New York.1 - American College of Obstetricians and Gynecologists2 - Repatriation Hospital - Victoria, Australia3 - Institute for Stem Cell Therapy and Exploration of Monogenic Disease in Evry Cedex, France