According to the World Health Organization and other doctors, an increasing number of young people are experiencing hearing loss due to the proliferation of ear buds, headphones, and other devices that produce loud sounds.

This may not come as a shock, but the hearing ability of millenials and young teens is being compromised by smartphones and sophisticated audio devices. 
The World Health Organization estimates that around 1.1 billion teens and young people are vulnerable to hearing loss. 
Their data found that almost half of people aged 12 to 35 in more prosperous countries are put at risk by damaging sound levels from personal electronics and about 40