How much hair is swallowed in a year?

On average, a person can swallow about 1 to 2 feet of hair per year, primarily due to habits like hair chewing or brushing hair that falls into the mouth. This amount can vary significantly based on individual behavior and grooming practices. While most of the hair is eventually expelled, some people might unintentionally ingest more, leading to potential health issues like trichobezoars. Overall, the quantity is relatively small and often not a cause for concern.