I've been thinking that swimmer's ear results primarily from excess ear wax. If I could beat that, I'd likely be in the water. Maybe a nice long fast will help with the ear wax and swimmer's ear. I'm planning one for this winter. If true, then more endurance may also help with ear wax, swimmer's ear issue.
Health problems associated with heavy training have been blown way out of proportion. Endurance athletes tend to be long lived. A theory can be proposed because an increase in capacity is associated with more longevity. Exercise is like CR and fasting. OTOH, a medical loss of capacity is associated with bad outcomes. This is also in the folk wisdom. A feeble handshake is associated with dire prospects. The theory predicts that a measured loss of hand strength is associated with bad outcomes. The kick is in the obverse. An increase in strength or endurance is a predictor of a longer life. It's not the scaler. Endurance changes yield a larger change in life expectancy than strength changes, but they are both valuable. A change in capacity is the predictor of outcomes. Strength and endurance changes are easily measurable. If the theory is true, then strength & endurance monitoring is life expectancy monitoring.
It appears that CR-memetics, like flavonoids and other polyphenols speed acquisition of strength and endurance capacity. This observation supports the theory and implies that changes in athletic capacity are indeed coupled to changes in expected longevity. It also supports the notion that CR, memesis, and improved athleticism combine to improve longevity. Use them all together to get a better result. Athletic improvements may translate directly to a longer lifespan. If you are dubious about this theory, check the literature for grip strength correlates. It is an easy test. My test will be the swimmer's ear. I'm expecting improvement.