71.   By training at mountain-ringed NAU, athletes create more red blood cells and improve their ability to draw in oxygen.

72.   By using the chambers, the athletes create more blood cells and improve their ability to draw in oxygen.

73.   He said the United Nations should improve its ability to react quickly to humanitarian crises.

74.   He wanted to improve the ability of drug and bomb dogs to do their work.

75.   In recent months, Iraq has improved its ability to fire missiles at U.S. and British aircraft patrolling a no-fly-zone in southern Iraq.

76.   It said the money is meant to improve the ability of the groups to participate in peace efforts.

77.   Mueller had previously announced plans to reorganize the FBI to devote greater resources to anti-terrorism, including the need to improve its ability to analyze available intelligence.

78.   Nearly three-quarters of workers with access say the Internet has improved their ability to do their jobs.

79.   NATO Secretary-General Lord Robertson warned the European and Canadian allies Sunday that a failure to improve their ability to respond to military crises could push Washington toward unilateralism.

80.   Older men and women who exercise improve their abilities to create natural drugs that fight heart attack, a study finds.