What are cylinders in a car? They are the hollowed out shapes/areas in the motor block, which the pistons move up and down through. The petrol is let into the cylinder, when piston pushes up, the petrol eâ¦xplodes and pushes the piston down. The bigger the cylinder the bigger to push, the more powerful the motor.
1 One in 200 American women suffers from anorexia. 2  Two to three in 100 American women suffers from bulimia. 3  Nearly half of all Americans personally know someone with an eating disorder (Note: One in five Americans suffers from mental illnesses.)  An estimated 10 â 15% of people with anorexia or bulimia are males.
The Renfrew Center Foundation for Eating Disorders, Eating Disorders 101 Guide: A Summary of Issues, Statistics and Resources, published September 2002, revised October 2003, http://www.renfrew.org. 0.5 % - 3.7 % of females suffer from Anorexia Nervosa in their lifetime. National Institute of Mental Health.n estimated 10 to 15% of people with anorexia or bulimia are male. Carlat, D.J. Camargo. Review of Bulimia in Males. American Journal of Psychiatry, 154, 1997 90 % of those who have eating disorders are women between the ages of 12 and 25.