Men in their 40s are the most unhappy group in Japan, according to a new survey by the Dai-ichi Life Research Institute. The survey investigated the level of happiness among various groups in Japan.

The results offer important insights into happiness in Japan that should be considered by the government, employers and individuals themselves.

The survey found that men in their 30s rated their level of happiness, on average, at 6.83 out of 10. That dropped to 5.51 among men in their 40s. Eventually, male happiness edged back up among men in their 70s. Men in their 80s rated their happiness as the highest of all genders and age groups, at 8.00. Men in their 40s find the multiple challenges of working, raising children and caring for parents to reduce their overall life satisfaction, a situation that changes dramatically for those in their 70s.