Dehydration actually increases blood viscosity, makes the blood thicker, which, combined with lower total blood volume, forces heart and circulatory system to work much harder that cause triggering fatigue and weakness.

Why Circulatory Strain Causes Fatigue and Weakness
Thicker Blood and Higher Resistance: When lack fluids, plasma volume drops, leaving a higher concentration of red blood cells and proteins. This raises blood viscosity and makes the blood thick and sticky. Thicker blood creates high resistance, making it much harder for your heart and vessels to push fluid through the circulatory system.
Decreased Blood Volume and Poor Oxygen/Nutrient Delivery
Low fluid levels mean less total blood volume circulating through your body. As a result, oxygen and vital nutrients and glucose reach your muscles, organs, and brain more slowly and in smaller amounts.
Overworked Heart (Tachycardia)
To make up for the drop in volume and sluggish flow, heart has to beat faster, raising heart rate and pump with more force. This extra cardiovascular strain burns through energy rapidly.
Cellular Energy Drop
Body cells specifically the mitochondria rely on proper fluid balance and a steady supply of oxygen to manufacture Adenosine Triphosphate (ATP), the main energy molecule of the body. When circulation slows and supply drops, cellular energy production plummets, leaving body feeling heavy, exhausted, and weakness.
Waste Buildup
Reduced circulation also delays the removal of metabolic waste products from body tissues, contributing to muscle aches, brain fog, and systemic sluggishness.
How CD2000 Nattokinase improves blood circulation affected by dehydration
When the body becomes dehydrated, fluid loss causes the blood to become viscous (thick). This sluggish blood flow puts extra strain on the cardiovascular system and significantly increases the risk of thrombosis (blood clot formation), which can lead to complications like cerebral infarctions or deep vein thrombosis. CD2000 Nattokinase improves blood circulation during dehydration by directly counteracting the thickening of blood and the elevated risk of blood clots.
When dehydrated, the body often restricts blood flow to peripheral areas to protect core organs. Clinical research indicates that CD2000 Nattokinase helps maintain and restore peripheral blood flow, ensuring that oxygen and nutrients can still reach smaller blood vessels throughout the body.
Important Safety Warning
While CD2000 Nattokinase is an effective supplement for the support in dehydration, it is not a replacement for water. If your body is dehydrated, the primary and most critical treatment is rehydration with water & electrolytes and immediately consult with a doctor/medical expert.