One in 5 Alzheimer's cases may be misdiagnosed, according to a report by CBS.

Two new studies reveal that the disease is often misdiagnosed, which could lead to unnecessary stress in those that don't have the disease and delays in treatment for those that do, CBS reported.

The study done by a team of researchers from Mayo Clinic in Jacksonville, Fla. found that men may be misdiagnosed more often than women.