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.
Many people who have anorexia recover, some improve, and some have problems with anorexia throughout their lives. 1  People with anorexia who are young and who start treatment early in their illness usually do well. 2  Anorexia is more difficult to treat when it has gone untreated for a long time.