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.
There are much more obvious differences between a brain and todays computers: The microprocessor is square, the brain is roughly round. The computer run on electricity, the brain runs on icky chemical stuff. The computer has a hard disk, the brain do not. The computer stores data sequentially, the brain do not.