Now a day, as human lives in the technology century, it is not surprising that everything revolves around the high tech. People interact with the technology every single day such as they communicate through phone, use laptops and computers to record data at work, watch television for amusement, etc. Technology expands in not only human daily lives, but in the present, they are also applied to the medical field. Beside the famous robotic surgery, the nanomedicine is another advanced technology that is commonly used. Researchers have concluded that human can use nanomedicine with different purposes in the future, however, the current application of nanomedicine for human treatment is drug delivery and cancer therapeutic. Many people would wonder how the nanomedicine works as a drug delivery in the human bodies. Medical experts and researchers believe that when the drug is delivered to a desired place in the body, the drug will be degenerated by the barriers it meets on the path like the digestive system, which then decreases the efficiency of an ability of healing and treatment of the drug. The pharmacist then produces far more dose than the actual need due to the degeneration of the medicine in the body. Therefore, in order to improve the benefit of the drug, nanomedicine is operated to overcome the difficulties. Scientists created a nanomedicine with the function of distinguishing between the healthy cells and the sick cells. A patient will be injected the nanomedicine into their bodies by the physicians, which the nanomedicine carries the substance or the drug along with it. The nanomedicine will protect the content of the drug when it goes through the barriers, when it arrives at the targeted destination, with the help of the ultrasound from the exterior, the nanomedicine will release the medicine. With the use of nanomedicine as a drug delivery, it will boost up the healing process, increase the efficiency of the drug, and reduce the cost of producing excessive doses. Besides the drug delivery, the nanomedicine can work to enhance cancer therapeutic. Nanomedicine in cancer therapeutic works similarly as if it is the drug delivery. People with cancer will be treated with the chemotherapy in order to destroy the tumor and the sick cells in the body. However, the chemotherapy is strong so it cannot detect the sick cells; it then destroys the healthy cells which causes the hair loss for the patient. In order to prevent that, the nanomedicine is used to protect the healthy cells. A patient will be injected the nanomedicine, it will then detect the healthy cells and protect them against the chemotherapy, decreases the side effects, and it can increase its effectiveness, therefore, it will boost the treating process of the cancer therapy. After many studies, the nanomedicine now operates as a drug delivery and cancer therapy.