1.   Some athletes use hypnotic and suggestive techniques as an adjunct to visualization and mental practice.

2.   The fact that athletes use the term sixth sense, a synonym for ESP, lends credence to this possibility.

3.   Americans have always been good in freestyle wrestling, where athletes can use their legs and arms against opponents.

4.   And athletes could use negative pressure in the chamber to feel heavier and increase their endurance as they work out.

5.   And the dietary supplements the athletes use disappear from store shelves around Boston.

6.   Another reason some athletes may use androstenedione is its suspected ability to mask the illegal use of testosterone.

7.   Athletes can use hypnosis to overcome mental obstacles, maintain their focus and even block out pain.

8.   Athletes have also used injections of cortisone and other steroid drugs to numb pain and enable them to play.

9.   Athletes use human growth hormone, or hGH, to increase lean body mass and strength.

10.   Athletes use the drugs to train more intensively, with a quicker recovery time.