Why do people say that it is easier for men to lose weight than women cause men have muscles?

Muscle burns fat: Men tend to lose weight faster due to muscle energy expenditures. The bigger the muscles the more energy expended. Muscles grow, more energy expended. Women, generally have a harder time adding muscle mass to their bodies, so the energy expenditure is less. Using larger muscle groups and whole body resistance exercises for women will increase energy use and facilitate weight loss.