The face of Alzheimer's isn't always old. Sometimes it belongs to someone like Giedre Cohen, who is 37, yet struggles to remember her own name.
Until about a year ago, Giedre was a "young, healthy, beautiful" woman just starting her life, says her husband, Tal Cohen, a real estate developer in Los Angeles. Now, he says, "her mind is slowly wasting away."
People like Giedre have a rare gene mutation that causes symptoms of Alzheimer's to appear before they turn 60.