This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A three-year exercise program improved ...

Sept. 30, 2006— -- Women trying to conceive using in vitro fertilization (IVF) are less likely to conceive if they regularly exercise four or more hours per week, according to a recently released ...

ABC News' Dr. Tara Narula explains a new study suggesting exercise intensity may matter more than total activity in ...