Unfortunately, music can also cause some serious harm in the form of tinnitus or other permanent hearing loss/damage. Tinnitus can result from listening to music at high volumes or amplitudes. Tinnitus is a buzzing in the ears that ranges from slight to severe. Tinnitus is a highly subjective condition; some patients claim to perceive sounds of animals or even popular songs. Music has also been known to cause epileptic seizures, often resulting in psychiatric complications. In a book devoted to the studying of these rare cases, Oliver Sacks, a professor of clinical neurology at Columbia University, writes of a woman who could not listen to a certain popular song for more than half a minute without succumbing to violent convulsions.
NAFTA expanded the maquiladora program by removing tariffs. Maquiladora is where United States-owned companies employ Mexican workers near the border. They cheaply assemble products for export back into the United States. The program grew to employ 30 percent of Mexico's labor force. The workers had "no labor rights or health protections," according to Continental Social Alliance . In addition, the "workdays stretch out 12 hours or more, and if you are a woman, you could be forced to take a pregnancy test when applying for a job."