Entries Tagged 'Health' ↓

Say Cheese

A dental makeover can be extremely expensive. But new dental technologies can make a huge difference in your smile—for a lot less.

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say cheese!  Woman's Day

Take A Bite Out Of Your Dental Bills

What hurts more than having a tooth pulled? The bill for services rendered. In the past 10 years, fees for dental work have increased by 56 percent, according to the American Dental Association. Here’s how to stretch your dental dollars.

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Take a Bite out of Your Dental Bills SELF

Major Advances In Dentistry

Computer-aided design, digital x-rays, fine-tuned implant technology, electrical nerve stimulation and a water-based laser that removes tooth decay are all emerging as the new tools of dentistry, making visits to the dentist quicker, more productive and even less painful. But this new technology comes at an increased price.

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Major Advances In Dentistry

Getting Fit After 50

It’s never too late to be fit, says Kenneth Cooper who runs the Cooper Fitness Center in Dallas, Texas, which specializes in fitness for older people. An older person who keeps exercising can maintain a much higher level of independence and quality of life.

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Get Fit After Fifty

The New Uses of Hypnosis

More and more, doctors are tapping into the power of suggestion to control pain, reduce stress and break destructive habits.

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How Not to Be Unhinged by Stress

You’re no stranger to stress—and since it is in your life, we want to help. Next time you’re feeling a bit too tightly wound, try one of these simple, expert-recommended stress stoppers.

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How Not to Be Unhinged by Stress

Your Body & Your Rhythms

Your Body & Your Rhythms

Why are some people natural early birds while others walk around in a coma until noon?

“We’re all governed by our circadian rhythms, daily cycles that are produced by a kind of pacemaker in our brains,” Dr. Thomas A. Wehr, the Chief of Clinical Psychobiology at the National Institute of Mental Health explains. “This clock is what wakes us in the morning and puts us to sleep at night and coordinates with hormonal and other cycles.

Some people’s clocks run fast or slow. If you’ve got a fast clock, you’re a morning person. You spring out of bed bright and early, but by evening you’re ready to sleep. Evening people run slow, have a terrible time getting up in the morning and don’t do well until noon or later.”

Most of us know little about the regular daily rhythms that govern sleep patterns, alertness, peak body strength, memory, logical reasoning, sensitivity to pain. All of these change from hour to hour according to our body clocks. And just like any other physical or psychological system, body clocks are vulnerable to a variety of ills, especially under the stress of modern life.

What Makes Your Body Clocks Tick

“Because our planet turns on its axis we basically live in two worlds, daytime and nighttime,” Dr. Wehr explains. “Most animals have specialized in one or the other. Humans are day specialists. Unlike owls or mice, who are better at creeping around in the dark and are blinded by sunlight, our vision and physiology is oriented to being good at doing things during the day. The pacemaker in our brains makes us feel like being active in the daytime and then slinking home and crawling into our lairs at night. For instance, our body temperature rises during the day, which helps us be more active and effective, while melatonin, a hormone that facilitates sleep, is produced only at night.”

We don’t just passively respond to the rising of the sun, however. The rhythmic switching is generated inside the brain. Even if we were living in total darkness, we’d still flip back and forth every 24-27 hours. Sunrise just resets our clock so it stays in sync with the rising and setting of the sun.

Why We’re So Tired All The Time

Before the advent of electric light the clock in our brains would adjust so that our period of activity got shorter in winter and longer in summer. But artificial light means that we can stay up all night if we choose. Dr. Wehr bemoans the fact that we’ve pushed our body clocks to their most extreme summer setting, with long days and short nights for life. “Permanent summer hasn’t done our bodies any good,” he says. “We’re addicted to long periods of wakefulness. The price we pay is in more fatigue and a down mood.” Lack of sleep in the winter may even cause depression by playing a part in SAD (Seasonal Affective Disorder).

Whoever you are, and whatever you do, chances are you’re not getting enough sleep, according to Dr. Tim Monk, psychiatrist at the Sleep Evaluation Center, University of Pittsburgh School of Medicine. “Society is ever more frantic,” warns Dr. Monk. ” We’re running a national sleep debt. Most women are working many more hours a day than they used to, both to make ends meet, provide child care and sometimes also go to school. Something has to give and that’s usually sleep. And even if we’re not on killer schedules, we read about people like Margaret Thatcher getting by on 4 hours, which makes the rest of us feel lazy needing 8.”

How you know if you’re getting enough sleep. “Simple,” says Dr. Monk, “If you’re well rested you shouldn’t be sleepy during the day. And you shouldn’t be falling asleep in the early evening or at other times.” It can a be a fatal mistake to miss out on sleep, especially if you’re driving a long commute or operating dangerous machinery.

Since your body clock regulates body temperature, hormone secretion and other physiological changes, time of day can greatly influence mental and physical performance. Here’s what Dr. Monk says you’ll be best at when:


  • Do some gentle stretches. You’d never know it from the hordes of joggers out huffing and puffing at 6 am, but morning is not a good time for strenuous exercise. Early exercise interferes with the body’s natural rhythms, according to Dr. Thomas Reilly, professor of Sport Science at Liverpool Polytechnic in England. “It takes time to become fully awake. When we get up our body temperature is low, our joints and muscles cold and stiff, and the nervous system isn’t prepared to drive the body. If you must exercise in the morning, keep it moderate.”
  • Go to the dentist. Pain tolerance is highest in the morning.
  •  Memorize the presentation you have to make later in the day.
  • Short-term memory is at its peak in the morning.
  • Eat a hearty breakfast. And if you must eat a whole box of cookies, do it before noon. The calories you take in during the morning do much less damage than those ingested in the evening.


  • Figure out how to balance the budget. Noon is the time of peak mental alertness. Working memory is sharpest at this time, so around noon is the best time for solving logical puzzles, doing mental arithmetic, working on any problems that take a lot of thought.
  • Don’t eat a heavy lunch. The post-lunch dip is worsened by a high carbohydrate meal.


  • Take a nap. It’s in our biological makeup to doze in the afternoon. Afternoon is siesta time in many parts of the world, where they view our on-the-go all day schedule as abnormal. Traditional hours in Europe are 8 am to noon with a 3-hour break for the heavy meal of the day followed by a nap; then a return to work from 4 to 7 pm, with a light meal after work. This schedule makes a lot more sense to our natural body rhythms.
  • Don’t schedule an afternoon slide presentation in a warm room. You might hear more snores than appreciative murmurs.
  • Do mindless tasks. Efficiency at simple repetitive tasks such as proof-checking or filing peaks in the late afternoon or early evening. Being a little less alert may help you tolerate the boredom.


  • Go to the gym after work. Since body temperature is the highest between 5 to 7 pm that’s best time for strenuous exercise. The muscles are more responsive because they’re warmer, while adrenalin and noradrenalin–the hormones that stimulate the heart– are still high. But don’t exercise within three hours of bedtime because you may not be able to fall asleep.
  • Memorize that sales pitch. Long-term memory peaks in the late afternoon and early evening.


  • Sleep for at least 7 hours. This may be a radical idea considering how most of us live, but if you manage to get a good night’s sleep, every night, you’ll be happier and healthier no matter how much you exercise or diet.

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