""The biochemical composition of hair makes it impossible for digestive juices in the stomach to break it down. It therefore accumulates, much like it builds up in the plughole of a bath or shower, attracting more hair and ..."
The rest is poorly formatted but this should serve as an explanation.
You are what you eat
Does this mean that every single hair we accidentally eat is slowly creating a hairball in our guts? Ewww!
I’ve been chewing my fingernails my whole life, same composition...