Ghost peppers, also known as Bhut Jolokia, are one of the hottest chili peppers in the world. They originated in India and have a Scoville heat rating of over 1 million units, making them significantly spicier than common peppers like jalapeños. The intense heat comes from a compound called capsaicin, which can cause a burning sensation when consumed. These peppers are often used in cooking to add extreme heat to dishes, but they should be handled with care. Due to their potency, even a small amount can overwhelm a meal. Ghost peppers are also used in some hot sauces and spicy snacks, appealing to those who enjoy extreme flavors.