The meridians are the invisible channels that run along the length of the body. These meridians are mainly named after the organs of the body such as the liver and stomach, but there are four exceptions, which are called the ‘pericardium', ‘triple heater', ‘conceptions' and ‘governor'. We have twelve main channels plus two special: conception and governor. Than there are a few more channels less known and less used in practice. Six meridians are yin and six are yang; six flow on the front of the body whilst the other six flow on the back. They end and swap with one another on the fingertips and on the toes. Where one yin meridian ends one yang meridian begins. They are also associated to different hours of the day. Each meridians 'stays' on its hour for two hours and then it is when it has the maximum load of energy.