Also a big fan of Attia. Another good follow is Rhonda Patrick (she’s a PhD and synthesizes research). Foundmyfitness.com
Rhonda is bullish on more HIIT with less zone 2. Also need to do weights. For HIIT she likes Swedish 4x4 (sprint for 4 min, slow for 3 min done 4 times) or 10x 1 (1 min...