Not sure if you’re dehydrated - or if it’s something else? There are a few tests you can do to figure it out. Even if you’re not thirsty - which is the telltale sign that you need to guzzle some fluids, and stat - you might still be mildly dehydrated.

First, the skin test. Use two of your fingers to pinch a bit of skin on the back of your hand. Then, let it go. If you’re hydrated, the skin should snap back into position in just a second or two. If it’s any more than a few seconds, you are probably dehydrated.

So how much water do you actually need? The answer can vary depending on your activity level, age, gender, where you live, and other factors. Plus, things like illnesses you might be fighting off or any medications you might be on can also affect the amount of water you need. To check if you are getting enough water, take a look at your urine color. If it’s dark yellow or amber, you need to drink up.