Your brain is constantly eating itself. This process is called phagocytosis, where cells envelop and consume smaller cells or molecules to remove them from the system. Don’t worry! Phagocytosis isn't harmful, but actually helps preserve your grey matter.
Wearing a tie can reduce blood flow to the brain by 7.5 per cent. A study in 2018 found that wearing a necktie can reduce the blood flow to your brain by up to 7.5 per cent, which can make you feel dizzy, nauseous and cause headaches. They can also increase the pressure in your eyes if on too tight and are great at carrying germs.