Bad Hair (IMAGE) American Chemical Society Caption "Bad hair days" may become a less frequent occurrence, researchers say. Magnified image (inset) shows crossed hair fibers, which make combing difficult. Credit Credit: Janali Thompson, American Chemical Society. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.