Adrenaline increases the "alertness" of the nervous system, meaning it's ready to trigger muscle contraction. It also increases the amount of blood flow and changes the tension of the muscles, which, ...

It has happened to many of us. While in the middle of work, a study session or just spending time with friends, your eyelid flutters for no apparent reason. At first, it may be nothing more than a ...

Left eye twitching—a seemingly minor physical occurrence—has captivated human curiosity across cultures for centuries. While modern science attributes it to factors like fatigue or stress, various ...

Most people never think twice about their ears, until they catch a strange little twitch they can't explain. It might happen after a sudden noise or while trying to focus on a distant sound. These ...