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Smart hydration hacks and proactive health checks can help you prevent fatigue, headaches, and dizziness during long fasts, keeping both energy and wellness intact.

Smart hydration strategies, combined with monitoring early warning signs, are essential to prevent these symptoms and protect overall health
Regardless of the motivation behind fasting, whether religious, cultural, or health-related the practice places stress on the body’s fluid balance systems. Fatigue, dizziness, and headaches are common when water and electrolyte levels drop below optimal levels. Smart hydration strategies, combined with monitoring early warning signs, are essential to prevent these symptoms and protect overall health. Dr Ajay Shah, Chief of Lab, Neuberg Ajay Shah Laboratory, breaks down how long fasts impact the body and how you can prevent fatigue and headaches.
To minimize the risk of dehydration, it is recommended to pre-hydrate or “front-load” fluids before a fast begins. Foods like cucumbers, melons, and soups not only improve hydration and fluid levels but also prolong satiety. Additionally, coconut water or plain water enhanced with a small pinch of rock salt provides natural electrolytes, helping maintain sufficient sodium and potassium levels. During the fasting period, avoiding caffeinated and sugary beverages is crucial, as they increase urine output and promote fluid loss.
From a medical standpoint, fasting for extended durations requires careful attention to bodily functions and subtle physiological changes. A well-structured diagnostic routine can act as a safeguard:
Electrolyte Panel – Monitors sodium, potassium, chloride, and bicarbonate levels, offering insights into imbalances, deficiencies, and risks such as muscle cramping or weakness.
Blood Pressure Monitoring – Low blood pressure, especially orthostatic hypotension (a sudden drop when standing), is an early warning sign of insufficient hydration.
Renal Function Tests – Tracking serum creatinine and blood urea nitrogen (BUN) levels can help detect early kidney stress from inadequate fluid intake.
Urinalysis – Measuring urine specific gravity reveals whether urine is overly concentrated due to dehydration.
Individuals with health conditions such as hypertension, diabetes, or kidney disease, as well as those considering prolonged fasting, should undergo routine diagnostic checks well in advance.
By combining proactive monitoring with smart fluid intake, the risks of headaches, dizziness, and fatigue during fasting can be minimized. This not only sustains energy levels but also preserves long-term health supporting the science behind structured hydration strategies for safe fasting.

Swati Chaturvedi, a seasoned media and journalism aficionado with over 10 years of expertise, is not just a storyteller; she’s a weaver of wit and wisdom in the digital landscape. As a key figure in News18 Engl…Read More
Swati Chaturvedi, a seasoned media and journalism aficionado with over 10 years of expertise, is not just a storyteller; she’s a weaver of wit and wisdom in the digital landscape. As a key figure in News18 Engl… Read More