Imagine being so thirsty, you wish you could drink the moisture right off the humidity in Singapore. But you can’t – not because it is impossible to do so, but because you’ve already hit your fluid quota, which can be as little as 500ml a day. That quota includes not only plain water but any food or drink such as coffee, tea, juice, soup, gravy, porridge and even ice cream that contributes to your fluid intake at room temperature.
