Is memory loss a normal part of aging, or does it mean something more serious is going on? You might have been told that losing your memory is part of the aging process and that you might not feel as sharp as you once were. However, you may be wondering if that's actually true and if you should be worried about the amount of "brain fog" you experience within a day.Could it be Alzheimer's or dementia?Alzheimer's disease is a progressive brain disorder that damages, and eventually destroys, brain cells. This leads to memory loss and changes in brain function and thinking. Dementia is an overall term used to describe a decline in your brain health. This can include the loss of your mental ability to think, remember and/or learn.Alzheimer's is the most common form of dementia and accounts for 60-80 percent of all cases.What are some signs of cognitive loss?Memory loss, inability to focus, or having problems putting thoughts into words could all be signs of cognitive decline.Clinical social worker, Stephanie Erickson, joins Dr. Mike to discuss the warning signs of cognitive decline and what you can do to help.