Add Yahoo as a preferred source to see more of our stories on Google. a school age girl with dark brown skin presents a simplified diagram of the human body to a teacher. the diagram depicts various ...

Did you know your skin is the largest organ in your body? The average fifth-grader has more than 6 pounds of skin. Whoa. Skin protects the inside of your body from the dirty outside world. It keeps ...

Even if you think you learned everything that you needed to know way back in biology class, everyone has knowledge gaps. And often you’re not even aware that they exist. There are tons of things we ...

The human skin is a marvel of nature—resilient, adaptable, and multifunctional. As the body's largest organ, it serves as our first line of defense against external threats while maintaining an ...

Water sustains every system in our bodies, yet many people unknowingly live in a state of chronic mild dehydration. While thirst remains the most obvious indicator of dehydration, your skin often ...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...