- At 30 you reach the peak.
- At 40 you start to have small health problems that don't go away and are mostly annoyance.
- At 50 you seek help because it's more than annoyance. You get your first permanent medication.
- At 60 it's somewhat limiting and for the first time causing Intermediate pain.
- At 70 it's debilitating and pain is a familiar companion. You might have your first seizures.
- At 80 if it hasn't killed you yet, it soon will. You are probably an invalid or close to it.
- At 90 if you are still hanging on, you are waiting for death and welcoming it.
That's pretty much it, ยฑ10 years.