Types of Insomnia. There are two types of insomnia: primary insomnia and secondary insomnia. 1  Primary insomnia: Primary insomnia means that a person is having sleep problems that are not directly associated with any other health condition or problem.
System of a Down's music has variously been termed alternative metal, nu metal, hard rock, progressive metal, thrash metal, art rock and avant-garde metal.
The L.A. band's single 'Talk Talk' was a Top 20 hit in 1966. The Music Machine is regarded as one of the most original garage-punk bands. Sean Bonniwell, lead singer and songwriter of the Music Machine, a 1960s Los Angeles band regarded as one of the most original of the garage-punk era, has died. He was 71.