Getting your beauty sleep can really improve your looks—and snoring can have the opposite effect, according to researchers. A study into sleep apnea—a condition marked by snoring and breathing interruptions—has shown that people with the condition appeared less attractive, youthful and alert than restful sleepers. Sufferers who were treated for the condition also appeared more attractive—with two thirds of the patients in the study being rated more highly in photos taken after treatment than before. …