Not so much my observation as that of my GP Doc.
I went in for a complete physical this morning.
Doc was pleased that my weight is down some, my blood pressure is perfect (with correctional drugs that have been prescribed), my lungs are clear and healthy (he asked again if I still smoked - I said yes. He said he was surprised, because my lungs sound clear deep and healthy, not like a smoker's lungs - I told him I was getting more exercise these days), my muscle tone is good (I told him that I was able to do some biking before the weather got so bad and I am starting to work out more heavily again on my four hundred pound punching bag since my hip seems to be all healed now) and that I was a specimen of excellent health.
BUT, as I was complaining about rather severe leg cramps keeping me awake at nights after hard exercise and what I perceived as difficulty in rebuilding muscle in my lower extremities, he ordered some blood tests to determine if my thyroid is performing properly and to find if I have low testosterone levels. At my age either are likely causes of muscle cramps after eliminating all the more common causes related to dehydration and grossly improper diet. Also my magnesium levels are to be suspected, despite my improved diet.
All in all, though, I passed the physical!
I was actually a little worried about it, but we will see what all that bloodwork tells us.