31.  Over time, insomnia can lead to hallucinations and, with regular use, a psychotic state that mental health experts say is indistinguishable from paranoid schizophrenia.

32.  Regular users -- regular use is suggested -- will be spending more on their herb habit than on their tuition.

33.  Some people swear by regular use of Jet Dry.

34.  The emergency stairway is too narrow and steep for regular use, officials said.

35.  The substances, which clinical studies suggest reduce artery-clogging cholesterol with regular use, are used in producing its Benecol margarine.

36.  This is exacerbated, obviously, by the fact that the only commercial programs in regular use are Netscape and Lotus Notes.

37.  This new product promises that, with regular use, your stockings will last nine times longer.

38.  This should be a room that receives regular use.

39.  Versatile in the kitchen for whipping everything from egg whites and cream to polenta, it can get regular use.

40.  Whatever the results of the trials, it would be years before the Food and Drug Administration could approve a vaccine for regular use.