If diseased, the carotid artery becomes narrowed or blocked and blood is unable to flow to the brain. The main cause of a stroke is a blockage in the carotid artery. Carotid artery disease is caused by the buildup of plaque in the arteries that supply blood to the brain.
Toilet Height. Whereas the height of a standard toilet is 17 inches or lower -- 14 1/2 inches is a common height -- the ADA guidelines mandate a distance between 17 and 19 inches from top of the seat to the floor on a handicap-accessible toilet. If the toilet is for use by children, the height must be from 11 to 17 inches. Many toilet manufacturers sell comfort models that conform to this height guideline, but if replacing your toilet isn't in your budget, you can increase the height of your standard toilet with an elevated seat.
The Americans with Disabilities Act of 1990 sets the minimum size for a wheelchair accessible toilet stall at 60 inches wide and 59 inches long, with the toilet fixture set in the corner of the stall opposite the door. The length can be reduced to 56 inches if a wall-hung toilet fixture is used.