Eating disorders are more common today than a century ago. There are several reasons for this:

• An unhealthily slim body ideal is promoted by the media. This causes people to try to become slimmer, and attempting to get abnormally slim is tributary to the setoff of eating disorders.
• Modern technology causes people today to move less and makes their work easier. Too little physical exercise, can contribute to eating disorders. More.
• The media focus on athletes and sports has also caused some to exercise excessively which also can lead to an addictive behaviour and contribute to eating disorders. More.
• Junk food is promoted more, is cheaper and is more easily available. More.

Eating disorders are more common in countries where unhealthy slim ideals are most strongly promoted.