81.   Little is known about what happens to men whose testosterone levels apparently are driven down by exercise, the review article said.

82.   Men are also likely to develop a higher rate of insulin resistance -- also associated with lower testosterone levels -- which may lead to diabetes.

83.   Mitchell was cleared after reportedly claiming the spike in his testosterone levels was a result of profuse sex and beer the night before the doping control.

84.   Slaney was suspended Saturday by the IAAF pending a USA Track and Field hearing into the year-old test results that showed excess testosterone levels.

85.   Slaney was suspended Saturday by the International Amateur Athletic Federation pending a USA Track and Field hearing into the year-old test results that showed excess testosterone levels.

86.   The lower dose had no significant effect on testosterone levels, though levels of the female hormone estrogen increased substantially with both doses.

87.   The risk factors for men include low testosterone levels, medications such as steroids, smoking, heavy drinking and lack of exercise.

88.   The results of the test showed a testosterone level far above normal.

89.   The treatments involve taking shots of Depo-Provera, a birth control treatment for women that reduces testosterone levels -- and usually sexual desire -- in men.

90.   The third case involves high testosterone levels returned by an athlete during the opening World Cup events in Calgary in November, Storey said.