Someone looked at a bunch of scientific studies, and came up with a list of random things, and the age when you're BEST at them.  At least statistically.  Here are the ten we thought were interesting . . .

1.  Learning a new language.  Your ability to do it peaks when you're around 7 or 8.

2.  Remembering people's names . . . 22 years old.

3.  Finding someone to marry . . . 26 years old.

4.  Running a marathon . . . 28 years old.

5.  Playing chess . . . 31 years old.

6.  Remembering people's faces . . . also 31 years old.

7.  Winning a Nobel Prize . . . 40 years old.  That's when the average winner has done it.

8.  Making your peak salary at work . . . 39 years old for women, and 48 for men.

9.  Doing math in your head . . . believe it or not, around 50 years old.

10.  Having a strong vocabulary . . . late 60s or early 70s.  There's a bit of a decline after that.

And in general, our happiness level peaks at 23, and again at 69. 

(Business Insider)