The test could conceivably help parents who are worried about gender-related diseases, but it could also allow people to wade into the morally murky waters of sex selection. The test analyzes fetal DNA found in a mother's blood, according to a report in the New York Times.
As most dementia is associated with Alzheimer's, dementia typically worsens with age. Unlike delirium, which is reversible, dementia is frequently caused by permanent damage to the brain's nerve cells. This damage can be caused by things like other illnesses, injuries, and even the genetic make-up of a person.
10 important differences between brains and computers: Brains are analog , computers are digital. The brain uses content-addressable memory. The brain is a massively parallel machine; computers are modular and serial. Processing speed is not fixed in the brain; there is no system clock. Short-term memory is not like RAM.