21.   One surprising finding of a large MacArthur Foundation research project on healthy elders is that good lung function was strongly associated with good mental function.

22.   Physical exercise helps to reduce stress and enhance memory, and aerobic exercise that expands lung function improves mental organization skills in older people, a recent study shows.

23.   Santa never seems to be bothered by smog and air pollution, despite lung function hampered by pipe smoking, obesity and advancing age.

24.   Smoking even a few cigarettes daily can hamper the development of normal lung function in adolescents, and girls seem to be particularly susceptible, Harvard researchers report.

25.   Some crew members have been put through their paces on a stationary cycle to measure lung function and muscle power and more medical tests are on tap today.

26.   The discovery has led to promising gene research and new treatments that thin mucus and improve lung function.

27.   The drug did not improve overall lung function.

28.   The Seattle biotech company Thursday announced trial results showing that its TOBI antibiotic significantly reduced infection and improved lung function in cystic fibrosis patients.

29.   The valves are used in equipment that test lung functions.

30.   Their lung function, measured by a portable spirometer, also showed modest improvement.