All 50 states and the District of Columbia had begun enrolling youngsters in the Children's Health Insurance Programs (CHIP) by last December, swelling the ranks of those insured under the program to 2.7 million.... A study funded by the Centers for Disease Control and Prevention says that only 25 percent of adults reported being encouraged by their doctors to exercise.... A recent report by the Institute of Medicine seeks to dispel some misconceptions about the uninsured, pointing out that 80 percent of that population is in "working families" and that immigrants make up only a small percentage of that number.... A survey of medical groups in California found that 44 percent of 250 reporting risk-bearing organizations met all of the financial solvency standards of the California Department of Managed Health Care. An organization representing medical practices asserted that the study used flawed methodology.