So what do we do to slow down? Here are some ways to manage your stress.

• Be realistic about your goals and keep things simple. If you offer to host the annual family Holiday party, don’t go over the top and self cater the entire thing. Take-out side dishes and salads are great fill-ins.

• Express your thoughts in writing. Keeping a journal, blog or diary can be very therapeutic. And if you are not keen of the pen, try recording yourself via a digital voice or video recorder.

• Incorporate some form of exercise into your day and be consistent about it. You don’t have to run the marathon; take a walk with a friend, join the pool at the local Y or shoot some hoops with your kids.

• Massages are the ultimate relaxant. If you don’t believe me, try one for yourself. An aside, did you know that despite the gloomy economy – massage therapy has remained quite popular according to a recent survey from the American Massage Therapy Association?

• Find out if your workplace has any stress-fighting resources in place. Many Employee-Assistance Programs (EAP), wellness programs or health plans provide confidential personal stress-relief plans.

We always intuited that  exercise enhanced our psychological states, but now  scientists are learning how exercise, a physiological activity,  directly affects mood and anxiety- that  exercise remodels the brain, making it more resistant to stress.

Exercise alters the activity of dopamine, a neurotransmitter in the brain, and appears to dampen the effects of oxidative stress. In an experiment led by researchers at the University of Houston and reported at the Society for Neuroscience meeting,” rats whose oxidative-stress levels had been artificially increased with injections of certain chemicals were extremely anxious when faced with unfamiliar terrain during laboratory testing. But rats that had exercised, even if they had received the oxidizing chemical, were relatively nonchalant under stress. When placed in the unfamiliar space, they didn’t run for dark corners and hide, like the unexercised rats. They insouciantly explored.”

“It looks more and more like the positive stress of exercise prepares cells and structures and pathways within the brain so that they’re more equipped to handle stress in other forms,” says Michael Hopkins, a graduate student affiliated with the Neurobiology of Learning and Memory Laboratory at Dartmouth. “It’s pretty amazing, really, that you can get this translation from the realm of purely physical stresses to the realm of psychological stressors.”

Alas, these stress-reducing changes on the brain  influenced  by exercise  don’t happen overnight.  In the University of Colorado experiments, for instance, rats that ran for only three weeks did not show much reduction in stress-induced anxiety, but those that ran for at least six weeks did. “Something happened between three and six weeks,” says Benjamin Greenwood, a research associate in the Department of Integrative Physiology at the University of Colorado, who helped conduct the experiments. Dr. Greenwood added that it was “not clear how that translates” into an exercise prescription for humans. We may require more weeks of working out, or maybe less. And no one has yet studied how intense the exercise needs to be. But the lesson, Dr. Greenwood says, is “don’t quit.” Keep running or cycling or swimming. (Animal experiments have focused exclusively on aerobic, endurance-type activities.) You may not feel a magical reduction of stress after your first jog, if you haven’t been exercising. But the molecular biochemical changes will begin, Dr. Greenwood says. And eventually, he says, they become “profound.”

Wives who cared for husbands with dementia were nearly four times more likely to develop dementia than wives of men who didn’t have dementia, while husband caregivers in the same circumstances were almost 12 times more likely to develop the disease.

So what exactly is it that causes the risk of developing Alzheimer’s to skyrocket? You can’t catch it, can you? Researchers think the root cause is the stress that comes along with these caregiving situations.

Ralph Nixon, MD, PhD, a psychiatrist and Alzheimer’s disease expert at NYU and vice chairman of the Medical & Scientific Advisory Council at the Alzheimer’s Association feels that “the amount of stress involved in caring for a spouse with dementia is tremendous,and stress is a known risk factor for dementia.”

Healthy diet and exercise are key factors of good brain health, and both of these areas tend to falter when one is stressed out. It is critical that caregivers look after themselves properly, making sure to rest, to visit a doctor regularly and to maintain social ties.

Since men tend to rely on their wives to serve as the impetus for seeing the doctor and keeping up with friends and family, they are more apt than women caregivers to let these things slide when their spouse is cognitively impaired – thereby increasing their risk of high cholesterol, blood pressure and other conditions that can lead to dementia.