Nutrition and Thirst: What is osmotic thirst and hypovolemic thirst?
                                
                                
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                                    4 min read                                
                            
                                The human body is approximately 60% water and maintains this balance through two distinct thirst mechanisms, which explains what is osmotic thirst and hypovolemic thirst. Triggered by different physiological signals, these cravings prompt us to replenish fluids to maintain proper hydration and cellular function.