Writing is like exercise

Sometimes I struggle to justify why I spend time writing for my blog. Here’s the argument I keep coming back to:

A regular writing habit is just like a regular exercise habit for your brain. Yes, it takes time, energy, and money, but it’s also good for you, and well worth it.

Writing and especially publishing it is just like going to the gym for your brain. Plus it increases your luck surface area and helps keep you young. So, well worth the investment.

Any thoughts?