When traffic noise gets too loud for health

Noise pollution is a growing problem that doesn't just affect our ears, but also causes stress-related conditions like anxiety, high blood pressure and insomnia. — TNS

Mike Thomson’s friends refuse to stay over at his house any more.

Thomson lives about 50 yards (45.7 metres) from a busy freeway that bisects California’s capital city in the United States – one that has been increasingly used as a speedway for high-speed races, diesel-spewing big rigs, revving motorcycles and cars that have been illegally modified to make even more noise.