Swing district Republicans brace for political fallout if health care subsidies expireAssociated PressALLENTOWN, Pa. (AP) — Republicans in key battleground U.S. House districts are working to contain the political fallout that may come when thousands of their constituents face higher bills for health insurance coverage obtained through the Affordable Care Act. The quest to slow aging leads scientists into the powerhouse of cellsWashington PostAging taps us on the shoulder in many ways: wrinkles, thinning hair, loss of flexibility, slowing of the brain. But the process also unfolds at a more fundamental, microscopic level, as the energy source inside most cells deteriorates.