Myth: You Don't Need as Much Water
This is the most pervasive and dangerous myth. While you might not feel as thirsty due to cooler temperatures, your body's need for water remains constant. [7, 21] High humidity during the monsoon actually makes it harder for your body to cool itself.
Your sweat doesn't evaporate as efficiently from your skin, so your body works harder, continuously losing fluids and crucial electrolytes even if you aren't engaging in strenuous activity. [15, 2] This 'hidden' dehydration can creep up, leading to fatigue, headaches, and dizziness that people often mistake for simply feeling under the weather. [4, 15] Experts recommend a consistent intake of 2.5 to 3 litres daily for most adults during the monsoon, adjusted for activity levels. [6]
Myth: Thirst is a Reliable Indicator
Relying on thirst to tell you when to drink is a poor strategy, especially during the monsoon. [3, 7] The cool, damp weather can suppress your natural thirst signals, tricking you into thinking you're adequately hydrated when you're not. [4, 10] By the time you actually feel thirsty, your body is often already in a state of dehydration. [3] A better way to monitor your hydration is by checking your urine colour; pale yellow indicates good hydration, while dark yellow is a clear red flag that you need to drink more fluids. [4] It's crucial to sip water consistently throughout the day, rather than waiting for thirst to strike. [4]
Myth: You Don't Lose Electrolytes if You're Not Sweating Heavily
Even without obvious, heavy sweating, your body consistently loses essential electrolytes like sodium, potassium, and magnesium through normal bodily functions and insensible perspiration. [7, 15] This process continues during the humid monsoon season. [2, 15] These minerals are vital for nerve signalling, muscle function, and maintaining proper fluid balance. [15] Losing them without replenishment can lead to muscle cramps, weakness, and fatigue. [15, 20] While water is essential, it's also important to replenish electrolytes. You can do this by consuming foods like bananas, spinach, and yoghurt, or by drinking coconut water. [3] In some cases, an oral rehydration solution (ORS) might be beneficial. [3]
Myth: Hot Drinks Like Tea and Coffee Don't Count
Enjoying a hot cup of chai or coffee is a monsoon ritual for many. While it's true that caffeine has a mild diuretic effect (making you urinate more), these beverages still contribute to your overall fluid intake. [7] The idea that they are completely dehydrating is a misconception. The water in these drinks largely offsets the fluid lost due to caffeine. [7] However, moderation is key. Relying solely on caffeinated drinks isn't ideal, as excessive caffeine can have other negative effects. Plain water should always be your primary source of hydration, but your daily cups of tea or coffee are not working entirely against your hydration goals. [2]
Myth: Drinking Cold Water Will Make You Sick
A common belief, particularly during cooler weather, is that drinking cold water can give you a cold or a sore throat. There is no scientific evidence to support this claim. [7] Your body's internal temperature regulation system can easily handle cold liquids, regardless of the outside weather. A cold or the flu is caused by viruses, not by the temperature of the water you drink. [5, 9] In fact, proper hydration is one of the best ways to support your immune system, which is crucial during the monsoon when the risk of infections is higher. [3, 8, 11] So, whether you prefer your water cold, warm, or at room temperature, the most important thing is that you drink enough of it.
