Even tiny muscles around the ears hint at our evolutionary past. In many mammals, tiny ear muscles allow the outer ear (pinna ...

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

Most people rarely think about how they breathe unless experiencing respiratory distress. Yet emerging research suggests that the pathway through which we inhale and exhale – nose versus mouth – ...

The human body is often described as a marvel of “perfect design”: elegant, efficient and finely tuned for its purpose. Yet, when we look closer, a rather different picture emerges. Far from being a ...