Cell therapy has been a subject to different scientific and medical researches. Medical researchers want to tap the potentials of this kind of therapy in curing different kinds of diseases. For instance, there are various studies done about human embroyonic stem cells to help clear the complex processes undergone during human development. Stem cell therapy is continuously studied and applied to replace the destroyed tissues in the body since stem cells have the capacity for regeneration. The potential of cell therapy is anticipated to extend in curing diseases such as Alzheimer’s disease, stroke, spinal cord injury, diabetes and heart diseases. Another condition that garners extensive research is tinnitus. Tinnitus is the ringing in the ears but this ringing is not actually caused by an outside stimuli. It is usually a symptom for a worse inner ear problem. Tinnitus can be classified into objective tinnitus and subjective tinnitus. There are different cure for this condition and tinnitus natural cure is also available. Ginkgo biloba is an example of a medicinal herb that can serve as a natural treatment for tinnitus. Pineapples and garlic also contain elements that can assist in treating sufferers of tinnitus. There are also different treating systems that are developed to help in curing tinnitus naturally.