Your body is doing things every single day that you probably never stop to question. Why do you sneeze? Why do your fingers wrinkle in water? Why do you suddenly jerk awake just as you're falling asleep? These everyday body reactions are more fascinating than they seem. Hiccups, yawning, stretching, sneezing, goosebumps, eye twitching, wrinkly fingers, tears, and hypnic jerks all have interesting biological explanations. Some are protective reflexes. Some are linked to stress, fatigue, temperature, or hydration. Others are fascinating examples of how the human body adapts to its environment. The human body is constantly working in the background—even when you aren't paying attention. Which of these body facts surprised you the most? Save this post for later and share it with someone who loves human body facts, science facts, psychology, biology, and fascinating everyday facts. Follow for more science-backed facts and surprising discoveries about the human body. #HumanBodyFacts ...