So I've come to the realization...

[Selector]

I was told long ago by a physician that virtually all people develop allergies as they age. Also, our bodies don't rebound as easily, or handle stresses of just about any kind as easily, whether physical or mental. We are much less 'plastic' than we were when we were 20. Those performing CPR as part of their daily work, say paramedics, will tell you that they routinely break the ribs of elderly patients when performing that otherwise life-saving act. The cartilage stiffens and won't take the shock and flexing, so the ribs separate from the sternum where the powerful compressions are being applied.

Aging ain't for sissies.