2026-02-24
Heat Stress and Aging: Why Older Adults Are More Vulnerable and How to Adapt
Thermoregulatory capacity declines with aging: sweating onset is delayed, cardiovascular reserve is reduced, and thirst is blunted. This article covers why older adults face higher heat mortality risk and what evidence supports safe heat adaptation.
2026-02-24
Nocturnal Blood Pressure Non-Dipping: The Hidden Cardiovascular Risk You Can Measure
Blood pressure normally falls 10–20% during sleep. When this nocturnal dip is absent, cardiovascular and renal risk increase substantially — even if daytime readings appear normal. This article explains the mechanism and evidence-based management strategies.
2026-02-24
Orthostatic Intolerance in Aging: Causes, Risks, and Evidence-Based Management
Orthostatic intolerance — dizziness or near-fainting upon standing — affects up to 20% of adults over 65 and substantially increases fall risk. This article reviews the mechanisms and evidence-based management strategies.
2026-02-24
Sodium-Potassium Balance in Aging: The Dietary Lever for Blood Pressure and Vascular Health
The ratio of dietary sodium to potassium is a more powerful predictor of cardiovascular risk than sodium intake alone. This article reviews the evidence for the Na/K balance as a therapeutic target and practical approaches to correction.
2026-02-23
Sedentary Behavior and Step Count in Aging: What the Evidence Says About Movement Thresholds
Low daily step count and prolonged sitting independently predict cardiovascular disease, metabolic dysfunction, and premature mortality. This article reviews the evidence thresholds and practical movement strategies for aging adults.