U.S. President George W. Bush was pronounced «fit for duty» after an annual checkup Saturday that showed that the 59-year-old leader, an avid mountain bike rider, has lost 8 pounds (nearly 4 kilograms) since his last physical exam in December, according to AP. «I'm feeling pretty good,» Bush said as he left the National Naval Medical Center in suburban Washington. On Saturday, the scale showed the nearly 6-foot (1.8-meter) Bush at 192 pounds (86 kilograms). A four-page medical summary issued by the White House said Bush remains in the «superior» fitness category for a man of his age. A separate statement signed by nine doctors who conducted the physical said there is «every reasonable expectation that he will remain fit for duty for the duration of his presidency.» Doctors prodded and probed the president for a little more than three hours, checking his heart, lungs, eyes, muscles and skin. Doctors used liquid nitrogen to freeze a noncancerous skin growth on his neck so they could remove it. The medical summary indicated the president has skin lesions consistent with sun damage and recommended that he use sun screen and wear a hat. Bush scored above average on a wide range of tests.