Heart beating fast, legs shaking. What's going on?

Heart beat fast legs trembling may be caused by hypoglycemia, cardiac neurosis, arrhythmia and other factors, the specific analysis is as follows:

1. Hypoglycemia

hypoglycemia occurs, the body glucose content decreases, can not provide energy to the body, leading to sympathetic excitation, will cause heart beat fast, legs trembling.

2. Cardiac neurosis

cardiac neurosis will make nerve dysfunction, leading to increased heartbeat frequency, causing leg muscle spasms, resulting in the above phenomenon.

3. Arrhythmia

arrhythmia will make the heartbeat rhythm abnormal, leading to accelerated myocardial contraction, so that blood flow instability, thus affecting muscle activity, the above situation occurs.