July 31, 2011

Light Therapy: Not Just for Wintertime Blues


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July 31, 2011 
Light Therapy: Not Just for Wintertime Blues
Drug-Free Treatment Reverses Even Bone-on-Bone Arthritis...
The Problem with Panty Liners
Heart Attacks Are Now Preventable
Fascinating Facts
  The Best of Mainstream and Natural Medicine
Tamara Eberlein, Editor

Light Therapy: Not Just for Wintertime Blues

Summer is my favorite season... the long sunny days just make me smile. But winter can leave me feeling blah. That’s why I have on occasion turned to mood-lifting light therapy—which basically consists of sitting in front of a special light-emitting device called a light box each morning—to chase away wintertime blues.

Why mention this now? Because recent research shows that light therapy relieves not only wintertime seasonal affective disorder (SAD), but also nonseasonal depression.

New evidence: In a study in Archives of General Psychiatry, one group of seniors (age 60 and up) with depression were exposed to the bright light of a light box for one hour daily for three weeks... the control group got a "sham" treatment with dim light. The bright-light group showed significantly greater improvement in mood and sleep quality (poor sleep often accompanies depression)... lower levels of the stress hormone cortisol... and more normal levels of melatonin, a hormone that helps regulate circadian rhythms and sleep-wake cycles by rising in the evening and falling in the morning. In fact, light therapy was as effective as antidepressant medication generally is—but did not carry the drugs’ risk for side effects.

I called Michael Terman, PhD, director of the Center for Light Treatment and Biological Rhythms at Columbia University Medical Center, to ask who else could benefit from the treatment. He told me that bright-light therapy can successfully treat a number of nonseasonal forms of depression, including chronic depression in women and men of various ages... bipolar disorder... and depression during pregnancy (offering a safe alternative to medications that might affect the fetus). There is also preliminary evidence of light therapy’s positive effects for postpartum depression. According to Dr. Terman, light therapy alone relieves mild, moderate or even severe depression in some cases... in other cases, light therapy is used along with psychotherapy, medication and/or other treatments.

Eyes must be open during light therapy because it works through the eyes, not the skin. Dr. Terman explained that a simple neural pathway connects the retina to the area of the brain that houses the body’s internal clock. This clock is vulnerable to getting out of kilter with respect to the local time of day, which can cause mood and energy to plummet and make it hard to get to sleep or to wake up feeling alert. Bright-light therapy sends a signal that resets the internal clock, shifting the circadian rhythm so it is in sync with the local day/night cycle—and this in turn has positive effects on mood. In addition, if melatonin activity is high at the time of the light signal, a reaction is triggered that reduces melatonin secretion, thus reinforcing the corrective effects on the internal clock. Light therapy also may increase the availability of the mood-boosting neurotransmitter serotonin by reducing activity of a "transporter" molecule that removes serotonin from active sites in the nervous system.

Light therapy works surprisingly quickly. Effects may be seen within a week of daily use—and sometimes even faster, Dr. Terman said.

HOW TO DO IT

You do not need a prescription to purchase a light box, and for people with mild depression, light therapy self-treatment generally is safe, Dr. Terman said. However, certain people should use light therapy only under the supervision of a doctor. This includes anyone who...

  • Suffers from moderate-to-severe depression, whether or not they are being treated with medication and/or psychotherapy—because if used incorrectly (such as at the wrong time of day), light therapy could potentially worsen depression symptoms.
  • Has bipolar disorder—because if the condition is not being adequately treated with mood-stabilizing medication, light therapy could lead to mania... and because light therapy’s timing may need to be adjusted to later in the day so as not to destabilize the circadian rhythm.
  • Takes medication that increases adverse reactions to sunlight, such as drugs used to control irregular heartbeat—because bright light could damage the retina, which absorbs these drugs in its photoreceptors.
  • Has a degenerative eye problem, such as macular degeneration—because bright white light could accelerate illness progression. (In such cases, a dimmer "dawn simulation" device, which also has an antidepressant effect, may be used instead.)

Using a light box at home: Dr. Terman recommended buying a fluorescent light box that provides 10,000 lux of illumination, which is the type that has proven successful in clinical trials. (Lower lux levels can be effective, Dr. Terman said, but require more exposure time to get the same effect.) The light box should filter out ultraviolet rays that can damage eyes and skin... and should give off white light, not colored light. The Center for Environmental Therapeutics (CET), a nonprofit that Dr. Terman cofounded, offers an appropriate light box called the Daylight Simulator for $179.99 (www.CET.org). Some insurance companies cover the cost if patients are using the light box under a physician’s supervision.

Treatment typically involves sitting 12 inches from the light box for 30 minutes each day shortly after waking up. "It’s essentially a breakfast-time routine. You don’t look directly into the light, but your eyes are open and bathed in light while you concentrate, for example, on your newspaper or laptop," said Dr. Terman. Important: The optimal time for and duration of treatment sessions varies among individuals. To help you determine the appropriate time of day for your light therapy sessions based on your personal circadian rhythm, take CET’s free online Automated Morningness-Eveningness Questionnaire (see www.CET.org/eng/Tools_ENG.html and click on "your circadian rhythm type").

People whose depression is not limited to winter can benefit from using a light box year-round. Most people experience no negative side effects from light therapy. A small number of users develop headaches, eyestrain, agitation and/or mild nausea. These symptoms tend to subside after a few days, Dr. Terman said—but if symptoms persist, reducing the duration of light treatment sessions or sitting farther from the light box often takes care of the problem.

Source: Michael Terman, PhD, is a psychologist and director of the Center for Light Treatment and Biological Rhythms at Columbia University Medical Center, and a professor of clinical psychology at Columbia University College of Physicians and Surgeons, both in New York City. He also is president of the Center for Environmental Therapeutics and director of clinical chronobiology at the New York State Psychiatric Institute. www.Columbia-Chronotherapy.org


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Drug-Free Treatment Reverses Even Bone-on-Bone Arthritis...

"Bone-on-bone" is the term doctors use for the last agonizing stage of arthritis. Your cartilage is totally ground away. Steroids and supplements are pointless. Alice was told her only hope was total knee replacement. Yet thanks to a brilliant physician, she skipped the surgery and feels like new. That’s right. Alice licked "bone-on-bone" arthritis without surgery or drugs. And she did so with astonishing speed. In fact, not long after seeing this doctor, she left on a three-week shopping vacation—then returned to the doctor’s office with gifts for the entire staff and pronounced herself pain-free! What’s the secret?


Learn more...

The Problem with Panty Liners


Q: I heard that wearing panty liners can cause irritation to the genitals. Is this true?

A: Yes, especially if you use them every day. We live in a society in which women have been told that wearing a panty liner will keep them fresh and clean—but actually the opposite is true. A panty liner prevents air from flowing freely in the genital area, thus trapping moisture and heat. This creates a breeding ground for bacteria and yeast, boosting your risk for a vaginal infection. A panty liner also can rub against the labia, causing irritation—and sometimes even forming an itchy callus from the friction. If the panty liner is scented, the chemicals used to impart the fragrance can irritate your sensitive tissues.

Most women have a natural discharge, so there is almost always going to be something on your underwear. Discharge is likely to increase depending on where you are in your menstrual cycle and whether you use birth control pills or hormone therapy. That’s OK! Aside from wearing a panty liner on extremely light days of your period or for a special occasion—say, when you’re wearing a slinky dress to a black-tie dinner and don’t want to worry about any discharge—skip the panty liner. Let your underwear do its job of protecting your clothing, changing your panties as needed so you feel fresh.

Source: Cherie A. LeFevre, MD, is an associate professor of gynecology and director of the Vulvar and Vaginal Disorders Specialty Center at Saint Louis University School of Medicine.


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Heart Attacks Are Now Preventable

The number of heart attacks has increased by 27% over the past 20 years, in spite of all the supposed advances of modern medicine. What’s going on here?

Could we be mistaken about some things? Perhaps we’re under some major misconceptions about heart disease. Like...

Myth #1—Heart disease and heart attacks are an inevitable part of aging.

Myth #2—Cholesterol is the main cause of heart disease and heart attacks.

Myth #3—Blood pressure drugs help you avoid heart problems and live longer.

Myth #4—Aggressive, "type A" behavior increases your risk of a heart attack.

Myth #5—Low-fat, low-cholesterol diets are good for you and your heart.


Learn more...

Fascinating Facts

1 in 5... Smokers who wrongly believe that some cigarettes—including slim brands and those labeled "gold," "silver" or "blue"—could be less harmful than others, such as "red" or "black" brands. These false beliefs were even more common in the US and the UK than in the other countries surveyed. Source: The journal Addiction

2 in 5... US women age 85 and older who have mild cognitive impairment or dementia. Women in the "oldest old" group—the fastest growing demographic in the country—should be screened for cognitive disorders, researchers suggest. Source: Archives of Neurology

3 in 5... Americans who volunteered time, gave money and/or helped strangers in the previous month. Source: Organisation for Economic Co-operation and Development


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Tamara Eberlein, the editor of HealthyWoman from Bottom Line, has been a health journalist for nearly three decades.
An award-winning author or coauthor of four books, she is committed to helping other women in midlife and beyond live healthy, fulfilling lives. Her latest book is the updated, third edition of When You’re Expecting Twins, Triplets, or Quads (HarperCollins). She is also the "chief health adviser" to her husband of 26 years and three college-age children.
  
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