Why is a mens discus different to womens?

The men's discus typically weighs 2.0 kilograms (4.4 pounds) and has a diameter of 22 centimeters, while the women's discus weighs 1.0 kilogram (2.2 pounds) and has a diameter of 18 centimeters. This difference in weight and size is designed to accommodate the average physical differences in strength and body mechanics between male and female athletes. These specifications help ensure fair competition and allow athletes to perform at their best.