1."Friendships. If you don’t invest in maintaining them in your 20s/30s, you’ll wake up one day in your 40s realizing it’s harder to build deep connections from scratch." 2."Being sedentary is as bad ...

In the United States, 12% of married couples with at least one spouse in their 30s or 40s have two incomes and no kids.

A business owner I know tends to only hire people in their twenties, under the under the assumption they bring new life into his business: new ideas, new innovations, new skills. And he’s sometimes ...