Listening to music can cause hearing loss.

According to audiologist, listening to loud music on headphones can cause hearing loss. If hair cells are damaged in any way, people suffer permanent hearing loss or balance degeneration.

In each ear, the inner ear structure called the cochlea-which receives sound in the form of vibrations has 15,000 hairs. These tiny, sensory hair cells are crucial to helping us detect sound waves-but are very fragile.
The hair cells do not regenerate, so damage to them is permanent-a common cause among people with some types of hearing loss.

Noise exposure is from ear buds, if the ear where the individual listens to music at inappropriately high levels. An ear bud sits in the ear obviously and the closer the ear bud is to the ear drum the higher the sound pressure and that can damage your hearing.

Increasing sound from three to six DB [decibels] doubles the intensity of  sound. If you want to use an earbud, use 60 per cent of the volume not more than 60 minutes a day. Always use noise cancelling headphones. Wearing noise cancelling headphones reduces the outside noise which reduce the volume of the sound.

 Commuters using public transport are exposed to noise levels that could cause deafness if experienced repeatedly and over long periods of time. Long-term exposure to transport noise can trigger depression and hearing loss.

Chronic excessive noise exposure leads to significant systemic pathology, such as depression, anxiety, increase the risk of chronic diseases and increased accident risk. Short, intense noise exposure has been demonstrated to be as injurious as longer, less intense noise exposure.
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Defective immune cells can cause hair loss

Scientists have discovered how immune cells could be used to cure hair loss.
The regulatory T-cells, known as 'Tregs', are all over human body, they control inflammation in the body.

Scientists from the University of California at San Francisco showed how Tregs in the skin send out signals that stimulate hair follicles to regenerate in mice.

 Hair follicles are recycling always, Tregs are important for this process, if this immune system is weak or dead, hair will not grow.

 A protein called KROX20 that is associated with nerve development, turned on in skin cells that become the hair shaft. The hair cells then produced a protein known as stem cell factor SCF
which is essential for hair pigmentation.

When scientists removed the SCF gene in the hair progenitor cells in mice, their hair turned white. When they removed the KROX20-producing cells, no hair grew and the mice became bald.

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