Newsletter

A Cream For Two Sun Spots Changed My Bloodwork

Hey Reader, Dr Karl here. Two of my numbers moved the wrong way this year. IGF-1 dropped 30 points — from 142 to 115. ...

My glucose says pre-diabetic. My insulin says otherwise. The same number can mean opposite things. Here’s how to tell.

Hey Reader, Dr Karl here. ​ My fasting glucose came back 102. The lab flags that high — technically pre-diabetic. ...

I turned 70. Here’s what my bloodwork actually says. And why “normal for your age” is the most dangerous phrase in medicine.

Hey Reader, Dr Karl here. I turned 70 last week. So I did 70 push-ups — and then I did something more useful. ...

Your HDL should pass your triglycerides by your mid-50s. Does it?

​ Everyone wants the one number that predicts how well they'll age. After five years tracking biomarkers across more than 100 clients, I'll give you mine. It isn't a supplement, and it isn't on your doctor's radar. It's HDL. And more precisely, it's what your HDL does relative to your triglycerides as the years ...

Do your lab results fit the pattern?

Hey Reader, Dr Karl here.​​​Let me introduce you to a different perspective of looking at your lab results with the aim being it will change how you use your results to understand your health... and what action you may need to consider taking.​Certainly my position has changed over the last 14 years. ...