Why is it so difficult to follow this simple and essential habit for our health? A lack of hydration is easily felt on our body and our mood. Here are 10 obvious signs that you are not drinking enough water.

1. You have a headache

Few people think about it, but a headache can often be caused by dehydration. The brain is 70% water. If you don’t hydrate, your body will retain water from all your tissues, including the brain, in order to make up for the lack. This process will cause a lack of oxygen to your brain, so you will suffer from headaches or blood pressure drops.

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