Since heavy metal was forged in Britain in the late 1960s, bands pushed the genre into ever heavier and faster realms. By the late 1980s, US groups such as Slayer and Venom had evolved heavy metal into thrash metal, speeding it up and introducing lyrics that focused on evil, satanism and psychopathy.

Chongqing's noodles are spicy, but are still popular with residents on hot days, writes Richard Macauley.