Some other diseases Bos taurus experience are East Coast Fever (ECF) which is an acute, tick-borne disease causing high rates of morbidity and mortality in cattle, and Anaplasmosis which is a vector-borne, infectious blood disease.
To put it in perspective for a friend, see how high you can count during that time. Believe it or not, there actually have been people who have held their breath for even longer than 11 minutes, though. The Guinness Book of World Records has a special category for holding your breath underwater.
1 Aleix Segura Vendrell, who set a world record for holding his breath underwater for 24 minutes and 3 seconds, is a proponent of this very technique.  Don't hold air in your cheeks. This method is meant for an air reserve, which requires letting go of the air in your lungs and switching it with the air in your cheeks.