The country has seen a dramatic shift away from jobs requiring physical strength. Fewer than 1 in 10 jobs now require what's called heavy work, a sector once dominated by men. Jung Getty/Getty Images hide caption toggle caption Jung Getty/Getty Images Business Men are struggling. A new book explores why and what to do about it November 4, 2022 In his new book Of Boys and Men, Richard V. Reeves of the Brookings Institution argues that men must move into fields that are now dominated by women to reverse economic declines.