Do humans have mileage like cars?

Everyone’s different. It all boils down to how much endurance one has.

kind of, but to compare a human body to a machine is apples and toaster ovens.

Not really. The difference between biological and non-bological machines is that the former has self regenerations, that constantly replaces worn out parts by brand new ones.
However this ability deteriorates over time, which is the cause of the decay humans call aging.

This is exactly why I don’t go to a gym to exercise. I save my energy for my real life. My excuse is that I’m not going to go wearing myself out, taking that on that mileage. Of course, it’s silly excuse. We don’t actually work that way. Be are biological beings and, as I do love saying..‘You’ll find it’s more complicated than that.’ But perhaps we are like cars, because they do come with faulty parts, get rusty and fall apart before their engines wear out. We get genetic predisposed cancers, heart disease etc… but it’s not just a case of mileage. I just hope I’m built more like a 1968 Volvo than a 1968 Skoda.

Well I suppose if you are going to compare a human to a car I would say it depends on the individual.
You can buy a new car and it can break down within the first six months, with not many miles on the clock.
Equally an individual can become faulty very early on in life. (don’t think you can really compare a human to a machine though)

In a sense. After all, some people burn more calories to do the same amount of action. What you’re carrying increases that, just like in a car. Weight also plays a role, and muscle tone.

Joints do wear out, thus replacements. thank goodness

Well, let’s take a car as the example. If you bring a cars rpms beyond redline you will eventualy create catastrophic failure. With a human I know that this is also possible. Any activity which brings your heart beyond a certain point of stress will cause its failure.

So that is one avenue of discussion, but it doesn’t cover a sort of long term good preventive maintenance valuation of human physical wear out zones.

Telomeres tell our cells not to keep reproducing at the same youthful rate. Maybe that is a good avenue of deciding how much renewal we can expect without synthetic intervention.

But I can’t help but think of a great athlete like Lance Armstrong. He must have put some serious miles in on a bicycle. Tiger Woods…he must have swung those clubs violently nearly perpetually for years.

Where does longterm athletic training meet the resistance of physical breakdown of the machine?

We do, it’s just we count our distance in years and not miles.

This is similar to service hours which I omitted intentionally, what you said that is… @mrrich724

Certainly years are a fair example of function. But we also see that the physical person is capable of degenerating before then. Here I am not meaning defying tolerances and causing strain injuries in the moment, but rather that physical use of the physique over many years of labor.

Personally, I think that it is probably close to 50 if a person were to work very hard all the time without making mistakes that might cause unnecessary injuries. I don’t have any math or science to back me up, but I think that even with rests and proper maintenance, once maturity was reached, if the body were worked at 100 percent efficiency it would likely fail between 40 and 60 not rather 70 and 90.

I am talking about things I don’t know…

Then I don’t know, and I’d wager to say that like others have answered, it all depends on the individual, which would lead to the answer being no.

Because there are body builders out there (and people who have a much higher physical activity level than other people) that put alot more literal miles and repetitions into their muscles and joints, who live just as long as the people who do not do nearly as much (while they may be healthy, they don’t put all that extra “mileage” on by running, lifting weights, etc) and vice versa.

Did that make sense? LOL

I’m late to answering this Q, but:

I think it’s yes and no.

Yes, because there are things like carpel tunnel, tendonitus, where extremely repetitive motions will wear out a specific part of the body.
But also No, because aside from that extreme and pinpointed overuse, (as long as they’re doing something to damage the body) the more active a person is, the longer they live.

So I think it’s hard to compare to mileage, because that’s not what’s going on. Like others say, we age, something cars don’t do.
If we didn’t age, and we didn’t overstress a single point to our body, the process would be something like this: our body would get torn up, repair itself, torn up, repair itself, on and on in an endless process.
Our bodies are built to fix themselves, and fix themselves better. (Get a blister, a callous grows.)(Work out, and you’re micro-tearing the muscle so it can grow back stronger. Stretch, grow back longer.)

Food/fuel aside—
The more we work, the more our body will tune itself to that work. Give the body its needed time to adjust, and we can do anything for any length of time.
Except fly… that’s what planes are for…