Can you survive on a diet of only tears?

Did you know humans produce three different types of tears?Miika Silfverberg (MiikaS) from Vantaa, Finland, CC BY-SA 2.0, via Wikimedia CommonsThe three types are:Basal tears, which lubricate the eye and help keep it dust-free.Reflex tears, which form in response to irritation from things like onions or pepper spray. These tears can also occur in response to bright lights, hot foods, coughing, vomiting, and yawning.Emotional tears, which I trust you are already familiar with. These encompass both happy and sad tears, as well as tears generated in response to anger, laughter, or pain.Each type of tear differs significantly in its chemical composition, specifically catered to the purpose that it serves.Emotional tears have higher concentrations of stress-inducing hormones than the other two types, so it’s thought that crying may play a biological role in balancing out stress levels.Crying does not always come easily to everyone, but some people who have no trouble at all producing tears…