Age is just a number. Yes, in this case the worst number possible.
The worst number for what? For wellbeing. According to a study from the US’s National Bureau of Economic Research, 47.2 is the unhappiest age you can be.
What happens after that? You start to feel a bit better.
You mean people in their 50s are happier than people in their 40s? Yes, and people in their 60s are happier still.