by Jim Burns | Jan 17, 2026 | Be Simply Fit
Why My VO₂ Max Looks Lower on Metoprolol A Be Simply Fit™ Explainer I want to explain something important if you’re on a medication like metoprolol (a beta-blocker) and you’ve noticed your heart rate or VO₂ max numbers look lower than expected. Metoprolol slows how...
by Jim Burns | Jan 16, 2026 | Be Simply Fit
If you’ve ever had blood work done, chances are you’ve seen a number called A1C on your lab report. Many people are told, “You’re fine” or “You’re borderline” — without ever truly understanding what that number means or why it matters so much for long-term health....
by Jim Burns | Jan 12, 2026 | Be Simply Fit
Have you ever wondered why your parents did some of the things they did? I did—many times. My dad had so many regimented habits that, as a kid, I thought he had a screw loose or something. I’m only going to talk about two of those habits here, because there are far...
by Jim Burns | Jan 9, 2026 | Be Simply Fit, Uncategorized
Insulin sensitivity describes how well your body responds to insulin, the hormone that moves sugar (glucose) from your bloodstream into your cells to be used for energy. Think of insulin like a key 🔑 Good insulin sensitivity: The key works easily. A small amount of...
by Jim Burns | Jan 8, 2026 | Be Simply Fit
When most people think about flexibility, they think about hamstrings, hips, or maybe their lower back. Very few think about their ankles. But as a trainer who works almost exclusively with adults 55+, I can tell you this with confidence: Your ankles may be the quiet...
