<unk> , also known as postural<unk> , is a form of<unk>  which occurs when someone's position prevents them from breathing adequately. A small but significant number of people die suddenly and without apparent reason during sex or restraint by police, prison (corrections) officers and health care staff.<unk>  may be a factor in some of these deaths.
Positional asphyxia
Perinatal asphyxia
Neonatal sepsis
Shaken baby syndrome
Amniotic fluid embolism
Near drowning
Infant botulism
Haemorrhagic disease of the newborn