Try this interesting experiment! This psychological phenomenon is known as the two-point threshold, and it can be used to test for nerve damage.
Those tiny dots are actually blood cells moving in the retina of your eye.
Why do hands and feet sweat so much? How do hormones and the nervous system control the body's cooling system?
Why does your hand shake from time to time? What causes this reaction?
Why do arms sometimes fall asleep and why do they start to tingle?
What is the next thing you do after you cry a little and flinch -- well rub the area where you got the ouch? Why do that?
A wallet can get stuffed pretty quickly. However, for their health they should really slim it down.
If you had to guess the most common cause of headaches, would you ever suspect the culprit is ice cream?
How can something that’s not hot in temperature produce the same reactions as something that is hot? Learn more on this Moment of Science.
Great news for those of you who suffer from chronic migraines. Doctors at Northwestern Memorial have come up with a surgery to help control pain in the brain!