When you move too quickly from a lying or sitting position to standing, some of the blood flows down to your legs due to gravity. Your body...
Sweating is a natural phenomenon that allows the body to release some of its internal heat and regulate its temperature, mainly when it heats up...
Hiccups are the result of an involuntary spasm of the diaphragm, the main muscle that allows for quiet breathing. When it suddenly contracts without warning, it quickly...
When you add an ice cube to your drink, there is necessarily a transfer of heat, from the liquid (hotter) to the ice cube (colder). It’s a...
The tingling sensations felt during sleep often come from the compression of a nerve or temporary poor blood circulation. When a nerve is compressed for...
When you eat, your body exerts extra effort to manage all of that. The stomach and intestines get to work breaking down food into smaller, more absorbable...
Human skin is a type of filter that allows light to enter and exit in a particular way. It is made up of several layers: the epidermis...
Honey naturally contains hydrogen peroxide, a type of hydrogen peroxide produced by an enzyme called glucose oxidase. This helps kill bacteria and prevents infections without...
When we sneeze, our eyes close without us even thinking about it. This reflex is there for a good reason: to protect our eyes. When...
Blinking acts as a quick protective barrier for your cornea. It's like closing the shutters in the face of immediate danger: as soon as dust, an insect,...
