In an examination of rats, researchers recently showed that particles in an intermediary size range, roughly 150 nanometers in diameter, were the most effective when it comes to stopping bleeding.
Like any medicine, aspirin has a list of potential side effects - one of which you might notice when you go to the bathroom and which may require medical attention.
A university student from the UK has invented the life-saving device, called REACT, that can be used by first responders of a violent knife crime to stop the bleeding and prevent blood loss.