Testing facilities that engage in animal testing dispose of both animals and dangerous chemicals, food waste, and a variety of supplies used during the testing process. Not to mention, animal testing has a heavy impact on water and air quality. Additionally, animal testing is cruel and ineffective. Animals don't get many of the diseases that humans do. For example, major types of heart disease, many types of cancer, HIV, Parkinson's disease, and schizophrenia. 100 million animals are killed each year due to animal testing.
Listening to music during exercise could lead to a better workout, scientists say. ... Listening to music while exercising can release feel-good chemicals in the brain — such as dopamine and opioids — that may boost your mood, dull pain and make you less tired, scientists say.
