Cardio for lifespan.
Strength for healthspan.
Both for looking good naked.
Nutrition for all three.
If you want to live a long time, make sure your heart and lungs are in great condition.
If you want your body to function well for a long time, get as strong as you can.
If you want to keep your body fat low, your muscle tone high, your body functioning as well as it can with even energy levels and admirable blood work, focus on eating stuff that doesn’t come in a wrapper or container.
For an optimal life, you need all three.
You don’t need to become elite at any of them, but if you make sure that you put in the intention, you’ll do just fine.
That’s all.