Imagine seeing someone with odd-colored eyes: blue on one side, brown on the other. Mesmerizing, isn't it? This phenomenon has a name: heterochromia. If you've ever heard of this particularity or have ...

Your eyes aren’t just a pretty feature of your face. They can provide surprising insights into your personality, your health ...

That mirror you look into every morning is revealing more about your pain tolerance than you ever imagined. The same genes that determine whether you have brown, blue, green, or hazel eyes are also ...