Body odor is the smell that comes from the body, primarily due to the bacteria on the skin breaking down sweat. Sweat itself is mostly odorless, but when it mixes with bacteria, it can produce various scents. Factors like diet, hygiene, and genetics can influence how strong or noticeable body odor is. Certain areas of the body, such as the armpits and feet, are more prone to developing odor because they have more sweat glands. Regular bathing and the use of antiperspirants or deodorants can help manage body odor by reducing sweat and masking smells.