ANATOMY

Detailed explanation-1: -At present, there are two main ways to regenerate hair cells in the inner ear: one is that the supporting cells will re-enter the cell cycle and differentiate into hair cells after mitosis. Another way is that supporting cells will directly transdifferentiate into hair cells.

Detailed explanation-2: -During regeneration, these signals can be activated within a matter of hours after hair cells are damaged, resulting in restoration of hair cells to near-normal levels only 4 weeks later.

Detailed explanation-3: -The living part of the hair is the very bottom part surrounding the papilla, called the bulb. The cells of the bulb divide every 23 to 72 hours, remarkably faster than any other cell in the body. Two sheaths, an inner and outer sheath, surround the follicle. These structures protect and form the growing hair shaft.

Detailed explanation-4: -Damaged Hair Cells in Your Ears Can Lead to Hearing Loss Up to 30% to 50% of hair cells can be damaged or destroyed before changes in your hearing can be measured by a hearing test. By the time you notice hearing loss, many hair cells have been destroyed and cannot be repaired.