Working moderately long hours (forty-one to fifty hours per week) was ‘associated with less risk of contracting heart disease, chronic lung disease, or depression’ in men. By contrast, such hours for female workers led to consistent and ‘alarming increases’ in life-threatening diseases, including heart disease and cancer. Women’s risk of developing these diseases started to rise when they worked more than forty hours per week. If they worked for an average of sixty hours per week for over thirty years, their risk of developing one of these diseases tripled.
