Children who were exposed to alcohol in the womb can\'t think as fast as kids who weren\'t exposed, a new study shows. Matthew Burden and his colleagues at Wayne State University in Detroit assessed 337 seven-year-olds. The children were asked to perform several tasks of increasing difficulty, such as determining which of two numbers is larger, or whether a single digit appeared in a short number sequence displayed immediately before. "As the problem gets harder, there is a greater degree of slowing down. And you would expect some of that, but there\'s even more slowing for the kids with the heaviest (alcohol) exposure,\" Burden says.