For the past few weeks I have been laboring over something interesting and hopefully informative to blog about - something that someone (even one person!), particularly as we get older, might find helpful in their running/racing travails.

First, a few pertinent comments: 1) I am a geologist, not a medical doctor; 2) I am 78 years old; 3) for the past 20-25 years my total cholesterol readings have been in the 260-320 range. …