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Adrenal Dysfunction and Adrenal Fatigue: Vital to Life, Yet Often Overlooked in Modern Medicine
The adrenal glands are among the body’s most vital yet overlooked organs, controlling stress adaptation, inflammation, blood pressure, metabolism, immune balance, and energy production. While severe adrenal failure such as Addison’s Disease is recognized in medicine, milder adrenal dysfunction often goes undiagnosed for years. Chronic stress, poor sleep, illness, medications, and nutritional deficiencies can impair adrenal function long before traditional testing reveals dise

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


Lactoferrin-Rich Colostrum and Better Sleep
Quality sleep depends on far more than melatonin. Emerging research suggests that lactoferrin-rich bovine colostrum may promote restorative sleep by reducing inflammation, supporting the gut-brain axis, balancing immune function, and maintaining healthy iron metabolism. Rather than acting as a sedative, lactoferrin helps restore the biologic environment necessary for healthier sleep—and potentially healthier aging.

David Stephen Klein, MD FACA FACPM
3 days ago11 min read


Hashimoto’s Thyroiditis: Diagnosis, Root Causes, and Modern Treatment Strategies
Hashimoto’s thyroiditis is the most common autoimmune cause of hypothyroidism, yet many patients remain undiagnosed for years because standard thyroid testing often misses early dysfunction. Understanding the immune attack on the thyroid, the role of inflammation, nutrient deficiencies, genetics, and environmental triggers can help identify the condition sooner. Early diagnosis and targeted treatment may help restore thyroid function and improve long-term health outcomes.

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


Alpha-Lipoic Acid: A Powerful Tool for Metabolic Health, Weight Loss, Insulin Resistance and Brain Protection
Alpha-lipoic acid (ALA) is a powerful antioxidant that plays an important role in metabolism, weight management, and brain health. Research shows it may improve insulin sensitivity, support healthy blood sugar regulation, promote fat metabolism, and help protect against cognitive decline by reducing oxidative stress and improving mitochondrial function. For patients focused on longevity and prevention, ALA may represent one of the most versatile evidence-based nutritional int

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


DHA and Dry Eye Disease: The Missing Nutrient in Ocular Surface Health
Dry eye disease is often treated with artificial tears, but emerging research suggests the problem may run much deeper. Deficiency of DHA, a critical omega-3 fatty acid concentrated in the retina and ocular surface, may contribute to inflammation, tear instability, and meibomian gland dysfunction. Understanding the nutritional connection between DHA and ocular health may provide a more effective long-term strategy for improving comfort, protecting vision, and reducing chronic

David Stephen Klein, MD FACA FACPM
Jul 146 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
Jul 75 min read


Pre-Diabetes: Insulin Resistance, Is It a Real Condition — Or a Warning Sign We Ignore at Our Own Risk?
Many people are told they have pre-diabetes and assume it simply means they may someday develop diabetes.
The truth is far more concerning.
Long before someone officially develops Type 2 diabetes, elevated insulin levels and subtle abnormalities in blood sugar regulation may already be damaging blood vessels, nerves, kidneys, and even the brain.
Prediabetes is not almost disease.
It is often the earliest measurable sign that metabolic dysfunction has already begun.
The g

David Stephen Klein, MD FACA FACPM
Jul 36 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


How Room Humidity Affects Sleep Quality: An Overlooked Variable in Restorative Sleep
Most people focus on sleep duration, mattress quality, or circadian rhythm when trying to improve sleep. Few realize that bedroom humidity can profoundly influence airway comfort, thermoregulation, snoring, sleep fragmentation, and even overnight hormone balance. Maintaining proper humidity may be one of the simplest and least appreciated interventions for improving restorative sleep.

David S. Klein, MD FACA FACPM
Jun 235 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
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