and yet none of that makes even a dent
What are you talking about? Doing these things is the only way to increase your quality of life and healthy lifespan, no amount money nor medicine will make up for abusing your body for decades.
These things are quite literally the leading causes of death and impairments in the west...
[dead]
For you personally, maybe not, but statistically yes it does.
There are populations that consistently outlive and the only other thing I would add is stress removal in the form of relatively simple life styles.