In general, health problems we come from two factors, namely from outside and from within our bodies. External factors caused by: hit, crash, stabbing, poisoning, and so on. While the factors in the body of bias due to: stress, emotions and others. Both of these factors can lead to disruption of the blood circulation or blood circulation becomes chaotic, causing disruption in the body's chemistry.
Key health of the human body is smooth blood circulation. Muscle tension or nerves can cause impaired blood circulation, muscle or nerve is pinched or change of position will also inhibit a person's blood circulation. So that part of the body will be susceptible to disease.