Money can be the cause of a lot of stress and problems for people, but thankfully, at the age of 40 and older, that’s something you might worry less about. According to data from the Federal Reserve, the median net worth of adults between the ages of 45 and 54 is $130,000 and rising. What’s even more curious is that according to data from PayScale, women start to reach their peak earnings at the age of 44, while for men, it’s at 55.