The mammalian circulatory system comprises both the cardiovascular system and the lymphatic system. In contrast to the blood vascular circulation, the lymphatic system forms a unidirectional transit ...

The human muscular system is complex and has many functions in the body, like mobility and stability. Learn more about the muscular system here.

Caffeine can kick start your senses within 15 minutes. See exactly what caffeine does to your body with this interactive graphic.

Introduction The exposure of the human body to vibration is present in everyday situations and may be a source of discomfort and in some cases may cause health problems. Particularly in the case of ...