Why Can Your Leg Feel “Asleep” After Sitting In An Awkward Position? Your muscles stop receiving oxygen Pressure disrupts normal nerve signaling Your bones temporarily shift position Your skin stops…

Why Can Drinking Something Very Cold Sometimes Cause “Brain Freeze”? Your brain actually becomes colder Rapid temperature changes stimulate nerves and blood vessels Your teeth temporarily stop sending signals Your…

Which Unusual Phenomenon Can Make A Person Sneeze After Seeing Bright Sunlight? Photokeratitis Photic sneeze reflex Circadian reflex Vestibular response Did You Know! Some blood disorders can cause an intense…

What's Happening When You Suddenly Jerk Awake Just As You're Falling Asleep? A retinal reflex A digestive spasm A hypnic jerk A circadian pause Did You Know! A blood disorder…

What Is One Reason Bruises May Become More Common As People Get Older? Skin and supporting tissues become thinner Bones produce blue pigment Muscles stop using oxygen Blood becomes naturally…

What's One Reason You May Wake Up With Crust In The Corners Of Your Eyes? Your eyes produce tiny bones overnight Tears, mucus, oils, and debris can accumulate Your eyelashes…

Why Might Your Hearing Seem Temporarily Muffled During An Airplane's Descent? Your eardrum becomes thicker Air pressure differs across the eardrum Your ears temporarily stop producing wax Your hearing nerves…

What Is One Reason Your Eyes May Water When You Cut An Onion? Onions release an irritating chemical into the air Your eyes detect the onion's color Your pupils become…

What Is The Medical Name For The Rumbling Noises Your Stomach Makes? Borborygmi Rhinorrhea Diplopia Tinnitus Did You Know! Some people can hear their own eyeballs move. A rare condition…