I mean, you definitely Should be doing all that. 2 hours at the gym + suppluments + cutting out processed food + getting at least 150 grams of protein a day + drinking purified water have all contributed significantly to keeping my brain active and capable at 38.
38 here as well. Agreed on all counts except the need for supplements if you're eating grassfed beef, lamb, organs (liver, etc) and other high quality whole foods. Also 180g protein for me, since I weigh 205lbs.