Bangkok: A recent wave of social media posts claiming that inadequate water consumption leads to thicker blood and increases the risk of strokes and paralysis has been debunked. The viral content, which includes videos, audio, and text messages, suggests that drinking insufficient water results in blood thickening, thereby heightening stroke risk.
According to Thai News Agency, the "Verify Before Sharing" center has collaborated with Associate Professor Dr. Pisut Katavetin from the Nephrology Unit at Chulalongkorn Hospital, part of the Thai Red Cross Society, to investigate these claims. Dr. Katavetin confirms that the assertion "drinking too little water makes blood thicker" is false. While severe dehydration and electrolyte imbalance can result in thicker blood, they are not directly caused by inadequate water intake. Typically, blood thickening, known as polycythemia, results from an overproduction of red blood cells rather than insufficient hydration.
Polycythemia is a condition characterized by an abnormally high concentration of red blood cells, which can impede blood circulation and increase the risk of blood clots in various organs. The human body is adept at maintaining balance, and it is advised to consume 500-600 cc to a maximum of 3-4 liters of water daily to ensure normal bodily functions, with a recommended intake of 1-2 liters per day.
The purported link between thick blood and stroke is also contested. Associate Professor Dr. Jesada Khienduangchan from the Department of Neurology at Mahidol University's Faculty of Medicine states that stroke risk factors include high blood pressure, high cholesterol, diabetes, heart disease, heavy smoking, physical inactivity, excessive alcohol consumption, and a family history of stroke.
Recognizing stroke symptoms early can be life-saving. The mnemonic BEFAST helps identify these symptoms: Balance issues, Eye problems, Face asymmetry, Arm weakness, Speech difficulties, and Time urgency, emphasizing the importance of seeking immediate medical attention within 4.5 hours by calling emergency services.
The misconception that drinking inadequate water alone can lead to stroke is further dispelled by expert advice on hydration. Thirst indicates dehydration, with symptoms such as dry mouth, dizziness, and drowsiness. It is crucial to replenish water and electrolytes appropriately, especially after excessive sweat loss or diarrhea. Individuals should avoid consuming large quantities of water at once, as the body may struggle to eliminate excess fluids.
Water plays a vital role in maintaining good health, supporting skin vitality, energy levels, blood circulation, and digestion. However, water intake recommendations may vary based on a person's medical conditions and physical health, as advised by healthcare professionals.