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Low-Grade Fever: When a Slight Temperature Elevation May Mean More Than You Think
A low-grade fever is often dismissed as insignificant, yet persistent mild elevations in body temperature may reveal important underlying physiologic stress. Infection, chronic inflammation, immune activation, endocrine dysfunction, and even hidden systemic disease can all influence temperature regulation. Understanding the body’s normal circadian temperature rhythm is equally important, since a temperature considered abnormal at one time of day may be entirely normal at anot

David Stephen Klein, MD FACA FACPM
3 days ago4 min read


Can a Simple CBC Predict Future Dementia Risk?
The Monocyte-to-Lymphocyte Ratio and Its Emerging Role in Cognitive Decline. One of the cheapest test that is currently available. Can a Simple CBC Predict Future Dementia Risk? Understanding how the Monocyte-to-Lymphocyte Ratio (MLR) may reveal early inflammatory changes associated with Alzheimer’s disease, vascular dementia, and accelerated cognitive aging. Quick Look Could a routine complete blood count reveal early warning signs of future dementia? A growing body of evide

David Stephen Klein, MD FACA FACPM
7 days ago5 min read


L-Glycine: An Overlooked Amino Acid for Sleep, Anxiety, Recovery, and Longevity
L-glycine is a simple amino acid with surprisingly powerful health benefits. Research suggests it may improve sleep quality, reduce anxiety, support collagen formation, enhance liver detoxification, improve metabolic health, and promote healthy aging pathways linked to longevity. Unlike conventional sedatives, glycine works naturally by supporting the body’s own restorative processes, making it one of the most overlooked compounds in nutritional and longevity medicine.

David Stephen Klein, MD FACA FACPM
Jun 275 min read


C15:0 Essential Fatty Acid: The Newly Discovered Longevity Nutrient?
For decades, nutrition science focused primarily on omega-3 and omega-6 fatty acids. New research now suggests that C15:0 (pentadecanoic acid), a naturally occurring odd-chain saturated fatty acid, may represent an overlooked essential nutrient. Early evidence indicates C15:0 may support mitochondrial function, reduce inflammation, stabilize cell membranes, improve insulin sensitivity, and potentially influence longevity pathways involved in healthy aging.

David Stephen Klein, MD FACA FACPM
Jun 185 min read


Uric Acid and Longevity: Live Longer by Keeping the Level below 5.5 mg/dl
Most people associate uric acid with gout, but emerging research suggests it may be far more important. Elevated uric acid has been linked to hypertension, cardiovascular disease, kidney disease, insulin resistance, endothelial dysfunction, and accelerated aging. While many laboratories consider levels up to 7.0 mg/dL “normal,” evidence suggests that levels below 5.5 mg/dL—and ideally near 5.0 mg/dL—may provide greater protection against vascular injury and chronic disease. U

David Stephen Klein, MD FACA FACPM
Jun 166 min read


Creatine: Is It Safe for Everyone? Hidden Kidney Risks and Safer Alternatives
Creatine is widely used to improve muscle mass and athletic performance, but it may not be appropriate for everyone. While generally considered safe in healthy individuals, concerns remain for patients with kidney disease, diabetes, hypertension, dehydration, or those taking medications that affect renal function. This article reviews potential risks, explains who should exercise caution, and discusses safer alternatives for preserving muscle mass and healthy aging.

David Stephen Klein, MD FACA FACPM
Jun 106 min read


Why Do I Wake Up at 3 AM Every Night? "3 a.m. Awakening"
Do you find yourself waking up around 3 AM night after night and struggling to fall back asleep? You're not alone. While occasional awakenings are normal, consistently waking during the early morning hours may signal an imbalance in cortisol, blood sugar regulation, stress hormones, sleep architecture, or circadian rhythm function. Understanding why this happens can provide important clues about your overall health. In this article, we'll explore the common causes of 3 AM awa

David Stephen Klein, MD FACA FACPM
Jun 65 min read


Increasing Metabolism Naturally
Metabolism is influenced by more than genetics. Strategic food choices, adequate protein intake, muscle preservation, sleep quality, and targeted supplements such as berberine, magnesium, alpha-lipoic acid, vitamin D, and L-carnitine can support healthy energy production and weight management. Learn evidence-based strategies to naturally optimize metabolic health.

David Stephen Klein, MD FACA FACPM
Jun 35 min read


Bergamot Extract and Cholesterol Lowering: Natural Support for Heart Health
Bergamot is a citrus fruit increasingly studied for its potential to support healthy cholesterol levels and cardiovascular health. Rich in flavonoids and antioxidant compounds, bergamot may help reduce LDL cholesterol, triglycerides, inflammation, and oxidative stress while supporting HDL cholesterol. This article reviews the science behind bergamot, possible benefits, dosing considerations, and safety information for individuals seeking natural support for metabolic and hear

David Stephen Klein, MD FACA FACPM
May 195 min read


Metabolic Syndrome: The Clinical Turning Point You Can Still Reverse
Metabolic syndrome marks the point where insulin resistance becomes measurable disease. At this stage, the process remains highly reversible. Early detection and targeted intervention can prevent progression to heart disease, diabetes, and cognitive decline.

David Stephen Klein, MD FACA FACPM
May 143 min read
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