What is Acupuncture? Ancient Chinese medicine believes every 2 hours a different organ provides the energy to run your body. For example 1-3 a.m. is when your liver is the primary energy source for the body, 3-5 a.m. is when your lungs provide the energy for the body. Now what is really cool is if you notice your symptoms happen at the same time of day. For example if you wake up at the same time in the middle of the night, or if you are exhausted at the same time of day that could be an acupuncture issue. Take notice when things happen, it might just be the answer to your health issues.