The size of our pupils fluctuates as we breathe. They are at their smallest as we start to breathe in, increase steadily to reach their largest size when we are in the middle of breathing out, then ...

The size of your pupils can say a lot about your health and your state of mind. In most cases, pupils change size based on the light and dilate, meaning that appear larger, when you're in a darker ...

You have probably heard the saying that the eyes are the windows to the soul, but now it turns out that they are also connected to how we breathe. Scientists have long studied the size of our pupils ...

You have probably heard the saying that the eyes are the windows to the soul, but new research shows they are also connected to how we breathe. Scientists at the Karolinska Institute in Sweden and the ...