Learn (or review) calculus, that's a good one. Crosswords? They're available online, tons of them
Diet and nutrition? That's a biggie. Stay away from seed oils (omega-6s such as linoleic acid), excessive carbohydrates, and long lists of "ingredients".
Fish oil capsules, supplements with polyphenols, and vitamins...all good.
Exercise? you betcha. I'll be running in a 5K in a few weeks, in fact.
Birthdays? My 78th is rapidly approaching. Keeping my memory fairly sharp takes work, but it beats the alternative.
Sound practical advice, FRiend! Thank you.
I’m gonna work on the amino acids, can’t name even one! 😆
I think I’m holding up pretty well on the rest of your suggestions.
“Keeping my memory fairly sharp takes work”
Yep, use it or lose it. My 75th is approaching in July. I took up chess about three years ago and that’s a real brain work-out (of course, it’s a double-edged sword because it increases your frustration level when you just seem to hit a wall, your rating is stuck, and you make dumb blunders).
I’ve always been a data and numbers engineer. I do a lot of tracking of my exercise, nutrition, blood pressure, hiking miles/elevation/heart rate, blood lab results, etc and log all the data. I was frustrated with the poor quality of the apps I use and started developing Python scripts to improve my analysis. That led to using Claude, ChatGPT, and Grok for agentic coding assistance when then led to learning “prompt engineering” and more learning about AI systems.
The personal app I now have for analyzing my hikes is now excellent and beats all the commercial tools. I had to first learn about the different exercise metabolic models that have been developed by researchers and figure out how to code them up in one app.
There’s no end to the ways you can keep your brain sharp and in top form.