Sleep Archive

Many people with anxiety disorders have trouble sleeping. That's a problem. Too little sleep affects mood, contributing to irritability and sometimes depression. Vital functions occur during different stages of sleep that leave you feeling rested and energized or help you learn and forge memories. Sleep usually improves when an anxiety disorder is treated. Practicing good "sleep hygiene" helps, too. Here are some steps to take:

• Go to bed and wake up at the same time every day, even on weekends.
• Daylight helps set sleep patterns, so try to be outdoors while it's light out for 30 minutes a day.
• Exercise regularly (but not too close to bedtime). An afternoon workout is ideal.
• Keep naps short — less than an hour — and forgo napping after 3 p.m.
• Avoid caffeine (found in coffee, many teas, chocolate, and many soft drinks), which can take up to eight hours to wear off. You may need to avoid caffeine entirely if you have panic attacks; many people who experience panic attacks are extra-sensitive to caffeine.
• Review your medications with a doctor to see if you are taking any stimulants, which are a common culprit in keeping people up at night. Sometimes it's possible to switch medicines.
• Avoid alcohol, large meals, foods that induce heartburn, and drinking a lot of fluid for several hours before bedtime.
• If you smoke, quit. Smoking causes many health problems, including compromising sleep in a variety of ways.
• Keep your bedroom cool, dark, and quiet, without distractions like TV or a computer. Avoid using an electronic device to read in bed; the light from the screen can trick your brain into thinking it is daytime. If your mattress is uncomfortable, replace it.
• Reading, listening to music, or relaxing before bed with a hot bath or deep breathing can help you get to sleep.
• If you don't fall asleep within 20 minutes of turning in (or if you wake up and can't fall back to sleep in 20 minutes), get out of bed and do something relaxing until you feel sleepy.

For additional tips and strategies for living with anxiety, buy Coping with Anxiety and Stress Disorders, a Special Health Report from Harvard Medical School. 

Fantasies can help rev up your sex life. Myths, on the other hand, can stop desire dead in its tracks. Such myths aren't the legends from classical history. They're the stories we tell ourselves and each other to support the notion that older people shouldn't, can't, and wouldn't want to have sex. This type of myth, however, bears as little relationship to reality as do the fanciful sagas of ancient gods and goddesses. Here are some examples of the most popular sexual myths and the myth-busting truths.

1. The myth: Only the young are sexually attractive.

The culture we live in exalts youth. Turn on the TV or open a magazine and you'll be barraged with images of supple skin, firm flesh, and lustrous locks. But if your mirror is reflecting a different picture these days, you may feel like the party is going on without you.

Calcium is billed as the bone-building nutrient. But some experts argue that we should pay more attention to exercise and vitamin D.

Starting on your 51st birthday, current government guidelines say you're supposed to consume 1,200 milligrams (mg) of calcium daily. With advancing years, both men and women begin to experience a decline in the density of bones that makes them weaker and more likely to break. In essence, your bone becomes more porous, and calcium supposedly fills in the holes.

But the amount of calcium adults need continues to be debated. The critics say there's little evidence that high intake has more than a marginal effect on bone density and fracture prevention. They say exercise and reversing vitamin D deficiency are not promoted enough and are more important for bone health. Professor Walter Willett, chair of the nutrition department at the Harvard School of Public Health, is one of the leading lights in the critical camp.

With summer's approach come plans for travel, including flying long distances. But the prospect of a long flight often raises health concerns. Especially in passengers who are older or have certain conditions, air travel and the related stress can have an impact on health. Here are a few trouble areas and some precautions you can take.

Deep-vein thrombosis (DVT). Not all experts agree on an association between DVT (blood clots in the legs) and air travel. Symptoms may not occur for several days, so it's difficult to establish a cause-and-effect relationship. If there is one, it's likely due to prolonged inactivity. Limited airline space can discourage moving about. Dry cabin air may also increase the risk of DVT.

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Figuring out all the factors that can affect your vitamin D level is complicated. Your body makes vitamin D when sunlight hits the skin. You can also get the vitamin from food (mainly because it's been added; few foods are natural sources of vitamin D) or by taking a supplement.

The process by which the body makes vitamin D is complex. It starts when the skin absorbs rays in the invisible ultraviolet B (UVB) part of the light spectrum. The liver and the kidneys also participate to make a form of the vitamin that the body can use.

The nutrient appears to have modest prevention power.

Image: Wavebreakmedia Ltd/Thinkstock

Vitamin C is often touted as a natural cold remedy. The nutrient is featured in supplements promising to boost the immune system. Nobel laureate Dr. Linus Pauling famously claimed that taking large doses of vitamin C helps thwart a cold. Is there something to these claims? "The data show that vitamin C is only marginally beneficial when it comes to the common cold," says Dr. Bruce Bistrian, chief of clinical nutrition at Harvard-affiliated Beth Israel Deaconess Medical Center.

About vitamin C

Our bodies don't make vitamin C, but we need it for immune function, bone structure, iron absorption, and healthy skin. We get vitamin C from our diet, usually in citrus fruits, strawberries, green vegetables, and tomatoes. The Recommended Dietary Allowance for men is 90 milligrams (mg) per day, and for women, it's 75 mg per day.

If lack of energy has drained your sex life, there are ways to reignite the passion.

 Image: © nautiluz56/Thinkstock

Your sexual drive can stay high late in life, but often your energy for sex can diminish. Low energy not only affects your sex life, but can carry over to other parts of your life, too. You can become apathetic, no longer find pleasure in favorite activities, and become more sedentary.

However, many of these issues related to lost sexual energy can be addressed. "Never think lack of energy means an end to your sex life, and there is nothing you can do about it," says Dr. Sharon Bober, director of the Harvard-affiliated Dana-Farber Sexual Health Program. "There are many strategies you can adopt to get back in the game."

On call

Q. My knees have been cracking for a long time, but lately I've noticed my ankles and elbows sometimes crack and pop. Is this a sign of early arthritis?

A. The good news is that the usual painless joint cracking or popping does not represent an early form of arthritis, nor does it cause joint damage (despite what our mothers told us about cracking our knuckles). The cracking sound appears to come from tendons or muscles moving over the joint or from the popping of nitrogen bubbles normally found in the joint space.

Excess weight carries health risks. But how much is too much?

 Image: © FredFroese/Getty Images

The idea that someone can be "fat and fit" — that is, overweight but still healthy — has been around for some time. But don't be fooled.

"The latest science is quite clear that excess weight can carry considerable health risks, including a higher risk for heart attack and stroke," says Dr. Jorge Plutzky, director of preventive cardiology at Harvard-affiliated Brigham and Women's Hospital. "While there is no one-size-fits-all number when it comes to a person's ideal weight, men should not ignore significant weight gain and the implications it has for their future health."