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Dr. Karen Hansen-Smith, MD
Medical Doctor
7 articles on Holistic Health
Published Articles
Intermittent Fasting for Longevity: Evidence and Protocols
Intermittent fasting activates autophagy, improves metabolic markers, and may extend healthspan. Review the evidence, protocols, and who should avoid it.
Antioxidants and Aging: Separating Hype from Science
Antioxidant supplements haven't lived up to their promise. Learn why the free radical theory of aging is incomplete and what actually protects against oxidative damage.
Telomere Length: Can You Slow Biological Aging?
Telomeres are your biological clock. Learn what shortens them, how to test biological age, and evidence-based strategies to preserve telomere length.
Functional Lab Markers for Healthy Aging
Standard bloodwork misses early aging signals. Learn the 12 functional lab markers that predict healthspan — from fasting insulin to hsCRP to vitamin D.
NAD+ and Aging: What the Science Actually Shows
NAD+ declines 50% by middle age, impairing DNA repair and energy production. Learn what research shows about NMN, NR, and restoring NAD+ levels.
How to Read Your Cortisol Labs: A Functional Medicine Guide
Learn how to interpret your cortisol lab results from a functional medicine perspective. Understand optimal ranges, patterns, and what to do next.
Why Do I Have Chronic Fatigue? A Functional Medicine Investigation of Root Causes
Discover the hidden root causes of chronic fatigue through functional medicine. From gut dysfunction to mitochondrial issues - get answers.