Counseling sessions with a school nurse may help some high school students, especially boys, quit smoking–but only for a little while, according to a U.S. study, Reuters reports. Researchers, who studied about 1,000 teens who said they wanted to quit smoking, wrote in the journal Pediatrics that close to 11 percent of those who got counseling for three months had quit smoking, compared to six percent of those who only received educational pamphlets…