Alzheimer’s Disease

Could something other than aging or dementia be to blame for my fuzzy thinking?

DEAR DOCTOR K: Lately my mind and memory have not been as sharp as usual. Could something other than aging or dementia be to blame?

DEAR READER: I'm glad you asked, because memory or thinking problems often lead people to worry that they are developing dementia. Most causes of dementia don't yet have cures. However, there are several underlying conditions that often affect memory and thinking -- conditions that can be cured. And they are often overlooked.

I care for my mother with Alzheimer’s. How can I ease the guilt and frustration I feel as I watch her decline?

DEAR DOCTOR K: I do my best to care for my mother, who has Alzheimer's disease. But I often feel guilty and frustrated. Can you help me change my outlook -- for my sake and my mother's?

DEAR READER: Fortunately, I never had to face the challenge that you face, as both my parents died while in full possession of their faculties. But many of my patients and friends are experiencing what you are going through. And like you, they often feel guilty and judge themselves harshly.

Are there any new treatments on the horizon for Alzheimer’s disease?

DEAR DOCTOR K: Is there anything new on the horizon for treatment of Alzheimer's disease?

DEAR READER: Alzheimer's disease affects more than 5 million people in the United States, alone. And that number is expected to more than double by 2050. I spoke to my colleague Dr. Gad Marshall about advances in Alzheimer's treatment. He is an assistant professor of neurology at Harvard Medical School.

My father has Alzheimer’s disease. Does that mean my children and I will eventually develop it too?

DEAR DOCTOR K: My father has been diagnosed with Alzheimer's disease. Does that mean that my children and I will eventually develop Alzheimer's too?

DEAR READER: Many people worry that if a parent had Alzheimer's disease, they are doomed. But that's not true. Having a first-degree relative (parent, sibling or child) with Alzheimer's disease increases a person's risk by about 30 percent. That sounds like a lot, and therefore sounds scary. But what you really want to know is: What is my risk in the first place? If it's a very low number, then raising a low risk by 30 percent won't be a big deal.

What is sundowning?

DEAR DOCTOR K: My husband and I are in our early 80s. Sometimes in the evening he is agitated, confused, and just quite a handful to deal with. The doctor says he has "sundowning." What is it, and is there anything I can do?

DEAR READER: Some older people have trouble concentrating, grow agitated or even confused, and become especially fatigued at the end of the day. This phenomenon is known as "sundowning" because its effects tend to coincide with sunset -- usually occurring in the late afternoon into the evening, then settling down late at night.

What medications treat Alzheimer’s disease?

DEAR DOCTOR K: My mother has been diagnosed with Alzheimer's disease. Can you tell me about medications that are available to treat this disease? What can and can't they do?

DEAR READER: Alzheimer's disease is a form of dementia. It often affects short-term memory early on. It then progresses to impair other cognitive functions such as thinking and judgment. As the disease advances, it can affect a person's mood and behavior. Eventually, most people lose their ability to do normal daily activities.

Are there any medicines that protect against Alzheimer’s?

DEAR DOCTOR K: I've heard that certain common medicines used for other purposes may also protect against Alzheimer's disease. Is there any truth to this?

DEAR READER: You've raised an important question. Unfortunately, research has not so far provided a clear answer. HORMONE THERAPY. For years, doctors believed that hormone therapy might protect women from Alzheimer's disease. This therapy replaces the hormones that a woman no longer makes after menopause. The possibility that hormone therapy might offer protection was raised by studies which found that women who took estrogen were less likely to develop Alzheimer's than those who didn't.

How does Alzheimer’s wreak so much havoc in the brain?

DEAR DOCTOR K: My grandmother has Alzheimer's disease. Over the past few years I have watched the disease take a toll on her judgment, memory, even her personality. How does Alzheimer's wreak so much havoc in the brain?

DEAR READER: In the past 25 years, medical science has learned a great deal about what causes Alzheimer's disease. Before that, we basically knew just that the brains of people with this disease, viewed with a microscope, had some unusual features. We knew that the disease caused brain cells to die prematurely, but we didn't know why. Today, I think we are closing in on understanding some major causes (if not all of the causes) of brain cell death.

Can dementia be treated or reversed?

DEAR DOCTOR K: My mother has started showing signs of dementia. Will it be all downhill from here? Or can dementia ever be treated or reversed?

DEAR READER: There are many different causes of dementia. We can't do much to slow or reverse some of them, but we can reverse and even cure others. Dementia is a catchall term. It covers a variety of illnesses that cause memory loss, confusion, changes in personality and declining ability to perform everyday activities.