Does your wife act like that in any way? Do you think any of your stress is because your wife doesn’t approve of you playing video games or spending money on them?

That’s not good, man. I hope you can overcome that. You deserve fun things as long as you’re taking care of everything you need to.

When our DNA strands are replicated during cell duplication, the very ends of the strands are destroyed. That's ok because on these ends, there are caps called telomeres. The telomeres are very long, so they can be broken down bit by bit over decades of replicating. But eventually, the caps run out and our actual DNA begins getting destroyed. Our cells and organs can no longer replicate and function, so the cells die.

Interestingly, there are a few organisms that have a protein that repairs telomeres. This allows them to live forever, as long as they aren't killed by something.

The lobster, for example, and a more recently-discovered jellyfish that can actually reverse its aging and go back into its younger forms using this process.