Earwax in the canal. Jaw movement assists this process by dislodging debris attached to the walls of the ear canal, increasing the likelihood of its expulsion. The lubrication provided by cerumen prevents desiccation of the skin within the ear canal. The lubricative properties arise from the high lipid content of the sebum produced by the sebaceous glands. In wet-type cerumen, these lipids include cholesterol, squalene, and many long-chain fatty acids and alcohols. While studies conducted up until the 1960s found little evidence supporting antibacterial activity for cerumen, more recent studies have found that cerumen has a bactericidal effect on some strains
Substance Abuse (band) effort, Background Music, featuring Tash, MC Eiht, KRS-One, Sadat X, Percee P, Myka 9, and Max Julien in 2013. In 2016, they released the follow up EP, "Background Music: The Redux." Substance Abuse (band) Substance Abuse is a Los Angeles based hip-hop group consisting of the duo Subz (Justin Hollingsworth) and Eso Tre (John Heath). The group dropped their debut single "What The F**K You Rhymin' For?" in 2000 on the now defunct Ground Control Records, which was followed by the single "Can't Call It"/"No Guarantees" featuring P.E.A.C.E. and Thes One on Weapon Shaped Records. Their debut album, Overproof, was