Contrary to popular belief, memory loss isn't an inevitable part of aging. Experts say most of us remain alert as we get older, though it may take a little longer to remember things.

Unpredictable, frustrating and, at times, embarrassing memory lapses can be common. So if frequent bouts of forgetfulness are causing you stress and worry, take note: there is most likely a simple explanation.

Most experts agree that there is no solid proof that memory-enhancing supplements work. These products may not even contain much of their "active herbal ingredients."

Many factors can cause symptoms that mimic Alzheimer’s disease. These symptoms are known as reversible dementias. Unlike Alzheimer’s disease, they can be cured with proper treatment. Here are factors that may lead to reversible dementias.

Many older adults are healthy, active, and alert. But sometimes older people become confused and forgetful. They can also seem anxious, depressed, or withdrawn. These changes may be the result of a primary dementia.

What looks like dementia may actually be confusion or forgetfulness caused by some other agent, such as a drug interaction.

Occasional memory lapses—what you ate for dinner last night or where you parked your car at the mall—are normal.