Chemobrain is a known side effect of cancer therapy -- it doesn't affect every cancer patient, but in those who it does tough, it causes a sort of fog to settle over the brain, causing problem in understanding, comprehnsion and memory. But there's good new: A so-called genius drug called Provigil has been shown to improve memory, attention and cognition in chemobrain sufferers. The drug was designed to promote wakefulness in people with sleep disorders.

Sounds promising, don't you think?

M.D. Anderson Cancer Center teaches the art of aromatherapy to soothe and heal. Cherie Perez, a supervising research nurse, teaches a monthly aromatherapy class to answer questions about aromatherapy treatments to cancer survivors and cancer caregivers undergoing treatment.

Perez first became involved with aromatherapy to help those diagnosed with fibromyalgia deal with the physical pain and discomfort caused by the disease. She now shares her professional knowledge of the basics of aromatherapy in each hour long class. Her classes are offered free of charge at the wellness center at M.D. Anderson. The wellness center focuses on helping patients and caregivers deal with the non-medical issues of living with cancer. This is the first complementary facility to be built on the campus of a comprehensive cancer center.

In the future Perez looks to designing research strategies to examine how aromatherapy can be used to treat or heal burns from radiation treatments. She would also like to explore aromatherapy in the use of pre-treatment anxiety and also manage loss of memory issues in cancer survivors.

Why do some researchers believe that aromatherapy is beneficial?

Our sense of smell is 10,000 times stronger than any of our other senses. The receptors in your nose communicate with two structures that are imbedded deep in your brain and serve as the storehouses for emotions and memories. It is believed that the stimulation of these structures influences our physical, emotional and mental health.

To read more about the uses of aromatherapy click here.

Chemobrain, a term used to describe the mental fog and confusion some women experience after chemotherapy treatment, is very real and researchers who studied the frontal lobe brain activity of women suffering from the occurrence have an explanation for why chemobrain happens. Based on a study done by University of California researchers, chemotherapy drugs disrupt the brain's metabolism and blood flow.

"The same area of the frontal lobe that showed lower resting metabolism displayed a substantial leap in activity when the patients were performing the memory exercise," said Daniel Silverman, the UCLA associate professor who led the study. "In effect, these women's brains were working harder than the control subjects to recall the same information."

In Chemobrain: when a fog settles over your mind, I described my personal experience with the mental confusion and the fog that settled over my mind in the first years after chemotherapy treatment for breast cancer. Chemobrain does not affect every woman who undergoes chemotherapy, but for the women it does affect, the struggle with the temporary damage suffered from chemotherapy on brain function, in diminished capacities of comprehension, concentration, and memory can be frustrating. The fog does eventually lift and patience, as well as engaging in mental activity that promotes concentration, seemed to help.

The current study is published in the online edition of Breast Cancer Research and Treatment.

An online conference called Thinking and Memory Challenges was held on August 15, 2006. You can read the Ask the Expert transcript on breastcancer.org.

I call it chemo brain. I can't remember anyone's name. As soon as they tell me I forget. I think it's mostly because when I'm being introduced I'm so worried about remembering my own name that I don't pay attention when they tell me theirs!

This transcript on memory challenges gives us insight on what might be causing our memory problems after cancer treatment. Is the memory loss caused by chemotherapy or maybe hormonal changes or even stress and anxiety?

This online conference explains what might be the causes of memory loss and tips to get your memory back on track.

I have heard the term chemobrain many times -- even here at The Cancer Blog when Dalene wrote about it. And I've started using the terminology myself -- to explain my new-found odd behavior. Like when I put a carton of ice cream in the refrigerator with no recollection of it. And when I took a cap off a pen, couldn't find it, and discovered it on top of an egg carton in the refrigerator. I don't think this is a refrigerator theme -- just a coincidence -- because I've also lost a clipboard at work, forgotten to hand a guest her glass of water immediately after I prepared it, lost library books and movies, and failed to remember responsibilities time and time again. This may seem like minor forgetfulness -- this is what my oncologist believes may be at work -- but for me, this is odd. I have always had a good memory, have always delivered on my promises, and have never felt as scattered as I do now. So I call it chemobrain -- a good excuse, I figure -- and am now trying to determine what exactly this word means.

My oncologist tells me he doesn't really like this term. He thinks it puts a negative spin on regular functioning. He believes those of us who have experienced chemotherapy look more closely at our post-chemo behavior and may interpret quirky stuff as more serious than it is. It probably existed before chemotherapy, he says. But now, we are more sensitive to it and find chemotherapy a good explanation. He may be right. But for me, something in my head has definitely been altered.

One patient advocate for Hurricane Voices: A Breast Cancer Foundation believes that something doesn't have to be scientifically proven to exist. And while chemobrain may not be completely proven, there are still studies that support its existence -- which manifests itself through aging-type memory problems, forgetfulness, distraction, and loss of the ability to calculate quickly. Some studies show that 20 to 30 percent of women who undergo chemotherapy for breast cancer, and some who receive similar treatment for lymphoma, score lower than average on mental function tests for as long as 10 years after chemotherapy. ''There's enough data now to at least know it's a real effect,'' said Dr. Ian F. Tannock, a psychiatrist who has studied this issue at Princess Margaret Hospital in Toronto. Some suggest that typical aging may be at fault -- and for premenopausal women who may be rushed into menopause, this effect may be due to hormonal issues. Regardless, it seems to stem from chemotherapy -- somehow. And somehow, this topic needs more attention, more research, and maybe a more positive name.

My love affair with words began in childhood. My relationship with words led to my passion for writing, and my work as a writer. For me, words are the same as clay to a sculptor. I mold words and shape them into sentences as works of art, to invoke a thought, a feeling, to express a philosophy, and to create beauty. During chemotherapy, I was prepared for hair loss. I was not prepared for the loss of my words. In mid-sentence, I stumbled in direction without any idea where my train of thought had intended to go. The half-sentence hung in mid-air, incomplete. I could look at a thing, have an experience, and not remember the word used to describe it. Short-term memory loss became a common daily occurrence. I was not a list maker by nature; I had not needed to use that tool to manage my days. I depended on my excellent ability to remember. Suddenly, note taking and list making became essential to navigating through each day. I was frightened by what might be happening to my mind in the fundamental changes of my brain ability to function at the normal levels it had before treatment for cancer. Recent research studies find that the temporary damage suffered from chemotherapy on brain function, in diminished capacities of comprehension, concentration, and memory, are legitimate medical conditions. The condition is real, and the medical term for it is chemobrain. A fog had settled into my brain, and the visibility became very limited. At the time, no one could predict whether my condition was temporary or permanent. Fortunately, over time, I regained the capabilities of my brain functioning abilities, before chemotherapy. Losing a word or losing a thought does not happen as frequently, as the fog continues to recede from the recesses of my mind.