What Can Happen If You Drink Too Much Water In A Short Period Of Time? Kidney Stones Heart Palpitations Water Intoxication Blood Thickening Did You Know! Your Nervous System Uses…

Which Of These Foods Can Glow Under A Blacklight After Being Eaten? Celery Bananas Salmon Garlic Did You Know! You Have “Mini-Brains” in Your Gut The gut has its own…

What Strange Thing Happens To Astronauts' Taste Buds In Space? They shut down completely They become less sensitive They crave sour foods They misfire randomly Did You Know! Your Brain…

Which Ancient Civilization Performed The Earliest Known Brain Surgery? Romans Greeks Incas Egyptians Did You Know! Your Heart Has Its Own “Brain” The human heart contains about 40,000 specialized neurons,…

What’s Unique About The Heart’s Electrical System? It stops when you sleep It uses stored static electricity It beats faster if you whistle It can beat outside the body Did…

What Rare Disorder Makes People Unable To Feel Physical Pain? Narcolepsy Congenital Insensitivity to Pain Hemophilia Hyperalgesia Did You Know! Your Stomach Can Grow New Layers Every Few Days The…

Which Unusual Condition Causes People To Shed Tears Of Blood? Epistaxis Haemolacria Hemophilia Lacrimal rupture Did You Know! Your Lungs Are the Only Organs That Can Float and “Regrow” Tissue…

Which Human Organ Was Once Thought To Be Completely Useless? Tonsils Spleen Appendix Gallbladder Did You Know! Your Left Lung Has a “Notch” to Make Room for Your Heart The…

What Unusual Thing Did Doctors Use To Test For Pregnancy Before Modern Tests? Cat fur reaction Frogs Color-changing rocks Garlic breath test Did You Know! Your Lungs Can Float on…