- Things to do by 40 include learning to make small talk and developing hobbies.
- We put together a list of 11 skills you should master by the time you enter your fifth decade of life, based on science, expert opinion, and other sources.
- Each one will help you get closer to success, happiness, and fulfillment.
No one ever really feels like a "grown-up." But if you're approaching 40, well, you are one.
And it's high time you mastered some crucial life skills, from staying healthy to saving money.
Below, we've listed 11 things you should tackle before you enter your fifth decade of life.