You Are Just Sitting Down to a Bowl of Hot

Short Answer

You are just sitting down to a bowl of hot vegetarian bean chili. It's made with garlic, onions, red and green peppers, hot chili peppers, and black beans. It's seasoned with salt, black pepper, and chili powder and flavored with the herb cilantro. You begin to slowly feel a warming sensation in your body. What ingredient is probably making this warming sensation? Explain what is happening in your body because of this specific ingredient.