Horror movie soundtracks sometimes include infrasound, which is sound below the range of human hearing. Even though we can’t hear it we can still feel it and infrasound has been shown to induce anxiety, heart palpitations, and shivering.
Scientists at UCLA noticed that “time and time again” people suffered their first experience with anxiety right after stomach illnesses. They did brain scans after patients ate probiotics, and found that stomach bacteria actually directly affected the connectivity of the brain.
Eric Hoffer was a writer and philosopher, who went blind from age 7 to 15. He was so afraid he would go blind again that he spent his life reading, studying and writing everything he could before he lost his sight again (which he never did).
Thirst not only occurs when the body loses a lot of fluids but also occurs due to increased levels of salt in the blood. The reason being salt tends to bind water.
In Greek myth, many of the ills that plagued mankind were creatures of emotion, such as revenge, spite, and envy. Released by the goddess Pandora, they sought to torment the world.