Wednesday, September 23, 2009

Lack of Sleep Increases the Risk of Catching a Cold

Really? - The Claim - Lack of Sleep Increases the Risk of Catching a Cold. - Question - NYTimes.com:

"THE FACTS As cold season approaches, many Americans stock up on their vitamin C

and echinacea. But heeding the age-old advice about catching up on sleep might be more important.

Studies have demonstrated that poor sleep and susceptibility to colds go hand in hand, and scientists think it could be a reflection of the role sleep plays in maintaining the body’s defenses.

In a recent study for The Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep. Then, during a five-day period, they quarantined the subjects and exposed them to cold viruses. Those who slept an average of fewer than seven hours a night, it turned out, were three times as likely to get sick as those who averaged at least eight hours.

Sleep and immunity, it seems, are tightly linked. Studies have found that mammals that require the most sleep also produce greater levels of disease-fighting white blood cells — but not red blood cells, even though both are produced in bone marrow and stem from the same precursor. And researchers at the Max Planck Institute for Evolutionary Anthropology have shown that species that sleep more have greater resistance against pathogens.

“Species that have evolved longer sleep durations,” the Planck scientists wrote, “appear to be able to increase investment in their immune systems and be better protected.”

THE BOTTOM LINE: Research suggests that poor sleep can increase susceptibility to colds."

Tuesday, September 22, 2009

When Doing Nothing Is the Best Medicine

When Doing Nothing Is the Best Medicine - WSJ.com:

"What cures colds, flu, sore throats, sore muscles, headaches, stomach aches, diarrhea, menstrual cramps, hangovers, back pain, jaw pain, tennis elbow, blisters, acne and colic, costs nothing, has no weird side effects and doesn't require a prescription?

Plain old-fashioned time. But it's often the hardest medicine for patients to take.

"Most people's bodies and immune systems are wonderful in terms of handling things—if people can be patient," says Ted Epperly, a family physician in Boise, Idaho, and president of the American Academy of Family Physicians.

"I have a mantra: You can do more for yourself than I can do for you," says Raymond Scalettar, a Washington, D.C., rheumatologist and former chairman of the American Medical Association. But, he says, "some patients are very medicine-oriented, and when you tell them they aren't good candidates for a drug they've heard about on TV, they don't come back."

An estimated one-third to one-half of the $2.2 trillion Americans spend annually on health care in the U.S. is spent on unnecessary tests, treatments and doctor visits. Much of that merely buys time for the body to heal itself.

And while temporary relief from symptoms is nothing to sneeze at, it adds up to a considerable amount of spending: $5.4 billion annually on cough and cold remedies, $2.7 billion on headache remedies and $411 million on chest rubs and other analgesics, according to Nielsen Co. Americans also spend an estimated $1 billion on unnecessary antibiotics that don't even relieve the symptoms of viral infections, and contribute to antibiotic resistance. But some patients are so insistent on getting antibiotics that doctors give in.

"I have colleagues who say, 'You can take this pill and get better in two days, or do nothing and get over it in 48 hours,' " says Dr. Scalettar.

Even H1N1, or swine flu, for all the uproar, almost always resolves in a few days with no treatment. The Centers for Disease Control and Prevention is urging physicians to use Tamiflu, an antiviral medication, sparingly to prevent shortages and avoid antiviral resistance. Only people who are hospitalized or at high risk for complications should get Tamiflu, according to the CDC.

The list of "self limiting" maladies—those that require no outside treatment—range from minor annoyances to what might appear to be more serious musculoskeletal problems. "Muscle aches and pain, minor traumas, sprains and strains typically do not need to be seen by a doctor," says Dr. Epperly, who recommends his organization's Web site, www.FamilyDoctor.org, as a resource to look up symptoms and health concerns. "Nausea, vomiting and diarrhea are typically time-limited. People will start to see improvement in two or three days—just watch that you're not throwing up blood," he says. If so, call your doctor.

Almost all viral infections resolve on their own, unless you have a compromised immune system. As a rule of thumb, Dr. Epperly says, infections in the nose, throat, stomach and upper respiratory tract tend to be viral. Infections elsewhere in the body are likely to be caused by bacteria, and those can get worse without antibiotics. About 80% of urinary-tract infections resolve on their own, for example, but about 20% develop into more serious kidney or blood infections. And even if they don't, the symptoms can be very uncomfortable.

Parents are often extremely eager to "do something" for children who complain of sniffles, stomach aches, scrapes and fevers. Yet kids are generally very resilient, writes Lara Zibners, an emergency pediatrician, in her book, "If Your Kid Eats This Book, Everything Will Still Be Okay." (For a fever, she advises calling the doctor if the patient is a baby younger than three months and has a fever over 100.4 degrees. For kids older than that, other symptoms are more important than the thermometer—especially if a child is listless, irritable, unusually sleepy, refusing to eat or drink, or having trouble breathing.)

Some chronic maladies follow predictable courses, according to many medical experts ,whether or not they are treated.

Colic is almost always gone in four months. Some 70% of acne is gone three to four years after it first appears. "Frozen shoulder"—a painful restriction of the shoulder joint—is typically painful for three to six months and stiff for the next four to six months, and resolves completely after one to three more months. Temporomandibular joint (TMJ) pain tends to go away by itself in 18 months. Sciatica resolves on its own in three weeks in 75% of cases.

For all the misery it causes, 80% to 90% of back pain resolves with only "conservative measures" (which include anti-inflammatory drugs, rest, heat, physical therapy and chiropractic treatments). "Sometimes it take days to weeks, sometimes it takes weeks to months, but pain lasts more than three months in only about 10% of cases," says Michael J. Yaszemski, chief of orthopedic spine surgery at the Mayo Clinic in Rochester, Minn.

Whether to operate even in those remaining cases is controversial, he says. With acute lumbar disc herniation, studies have found that two and five years later, there's little difference between patients who had surgery and those who did not. But surgery can sometimes provide relief faster.

"There are those patients who feel they just can't wait—like Joe Montana," says Dr. Yaszemski of the former San Francisco 49ers quarterback, who made headlines when he returned to playing football just eight weeks after spinal surgery in 1986.

Many patients are relieved to hear that they don't need to take medicine, have a blood test or undergo surgery for what ails them. But some feel embarrassed to have taken the doctor's time or frustrated because they think the doctor isn't taking their situation seriously. ("Much depends on the way you tell them," says Dr. Scalettar. "There are some arrogant doctors.")

And some patients resent paying for a visit when all the doctor provides is reassurance that they'll get better with time. "If a patient says, 'You mean, I'm paying $100 for you to tell me there's nothing wrong?' I say, 'There is something wrong—a virus,' " says Dr. Epperly. " 'But more importantly, I can tell you what's not wrong: it's not meningitis or cancer or a brain tumor or some other life-threatening illness. And if the pain doesn't go away in a few days, please, please tell me, and we'll investigate further.' "

"The longer you've known someone, the easier that conversation is," Dr. Epperly adds.

Indeed, applying what some call "a tincture of time" requires time on the doctor's part as well. Explaining why a medication or CT scan or MRI isn't necessary, or what signs to look for if an ailment isn't getting better, often takes more time than writing a quick prescription.

Of course, there are symptoms that people should never ignore, since they could signal a serious illness or a condition that could get worse, not better, with time. Contact your doctor immediately if you experience any of the following:

  • Crushing chest pains—the classic signs of a possible heart attack.
  • Sudden numbness or weakness on one side of the body, confusion, trouble speaking or severe headache—which could indicate a stroke.
  • Sudden, severe headaches.
  • Any major injury, especially involving loss of consciousness.
  • Coughing up, throwing up or excreting blood.
  • Suicidal or homicidal urges.
  • Flashing lights in your vision—which could be a detached retina.
  • Inability to breath—which could be a severe allergic reaction.
  • Recurrent tooth pain. "You can typically give a tooth ache 24 hours," says Dr. Epperly. "If it's an abscess that would require a root canal, it won't get better by itself."

The bottom line: Don't hesitate to call your doctor if you have persistent pain or a loss of function or anything unusual for you. It's worthwhile to rule out something serious that does need medical attention. But if the doctor says you will get better on your own, that's a powerful prescription itself."

Saturday, September 12, 2009

Mama wasn't always right: 9 updated health rules - CNN.com

Mama wasn't always right: 9 updated health rules - CNN.com:

"Now that you have kids, you've probably realized that there was actually some sense behind all that advice your mother gave you.

There is a lot of sense behind some of mama's advice, but other adages are not quite right.

Maybe you can thank her for your perfect posture (even though it took 4,567 reminders to stand up straight) or for insisting on all those family dinners. Then again, some things need not be passed down to yet another generation. Take a look.

Mama always said: Eat more! Kids are starving!

That's true, but probably not in your house. The clean-plate club isn't where it's at anymore. It's important to give kids the chance to stop eating based on appetite, instead of external cues like an empty bowl, says Marilyn Tanner-Blasiar, a pediatric dietitian at Washington University School of Medicine. It helps them stay attuned to their feelings of satiety.

When they lose that connection, the risk of becoming overweight goes up. But moms wouldn't be moms if they didn't worry about their kids' food. It's never going to be easy to let go, but if you give them healthy options and allow them to eat when they're hungry and stop when they're full, the rest will take care of itself.

Mama always said: Don't sit so close to the TV -- you'll ruin your eyes

Actually, you won't, and neither will your kids. According to the American Optometric Association, children can't harm their eyes by sitting with their noses practically pressed against the flat-screen. Watching close-up, however, may cause eyestrain, which can lead to headaches, says Dr. Vincent Iannelli, a Dallas, Texas, pediatrician.

Eyestrain doesn't worsen vision, but it's not comfortable, either. For healthier viewing, remind your children not to watch in total darkness -- the sharp contrast between the room and the TV can worsen strain -- and have them plop down about ten feet away. But if you have a child who's always sitting really close, she may be having a hard time seeing. Ask her to scooch to a more normal distance, and if she can't see the screen clearly, get her eyes checked.

Mama always said: Don't read in the dark

Smart thinking. Just as watching TV in a black void can cause eyestrain, so it goes with reading in low light, says Cathy Doty, a pediatric optometrist in New Bern, North Carolina. And if kids keep it up for long periods (like your voracious reader, who sneaks in extra chapters with a flashlight under the covers), it can lead to intermittent blurred vision and headaches.

All of these symptoms resolve with rest, but this behavior can speed the onset of nearsightedness in kids who are genetically predisposed, says Doty. To protect their peepers, make sure kids have at least 60 watts of light to read under and encourage them to keep books (and computer screens) at arm's length and to take frequent breaks. Parenting.com: Moms' dirty little secrets

Mama always said: Don't frown, you'll get wrinkles

Yep, you might. Furrowing your brow millions of times over your life can leave a line or two eventually. So can laughing. There's no way to avoid it, nor any reason to try.

Our facial muscles move to express emotion. And without those muscles, we couldn't eat, drink, smile, or kiss. The best way to help protect your kids' future faces and skin from head to toe? Load them up with SPF and keep on encouraging all the healthy stuff you already do: Try a vegetable. Run outside and play. And most of all, have fun! Parenting.com: 12 parenting rules you can break

Mama always said: Sit up straight

Good one, Nana. Slumping over puts major pressure on the neck, shoulders, and back, not to mention that it keeps the lungs from completely filling. But constantly scolding kids to correct their posture is frustrating. Instead, try to keep your kids active, says Patrice Winter, a physical therapist and assistant professor at George Mason University. It will give their muscles the strength needed to maintain alignment -- without nagging!

Mama always said: That music is too loud

It probably is. If you have a kid who goes nowhere without her iPod, there's a good chance she's rocking her way to some hearing loss later, says Dr. Craig Derkay, professor of otolaryngology and pediatrics at Eastern Virginia Medical School. If she likes her tunes loud, ask her to take a break every 20 minutes or so. You can also consider springing for noise-canceling headphones: They drown out background sounds, so she'll be less tempted to turn it up.

Mama always said: We're having dinner together because that's what families do

She was onto something. Kids are more likely to eat a balanced meal when the family dines together, says Kathleen Burklow, a clinical psychologist in Cincinnati, Ohio. And it's an all-around great way to connect. Don't stress if you can't do it every night (who can?); instead, make the most of the time you have. Parenting.com: 7 snacks that won't spoil dinner

If you always get the same one-word responses, have the kids ask you questions about your day. Or come up with a few very specific questions for everyone to answer, like what made you laugh today? What was the nicest thing someone did for you today? What was the nicest thing you did? You might be surprised at how much you actually hear.

Mama always said: Eat your breakfast

Pass it down. There is no doubt that breakfast is the most important meal of the day. Studies have proven that children who eat an a.m. meal perform better in school. Plus, many breakfast foods are excellent sources of calcium, iron, and fiber, all of which tend to be lacking in many children's diets. If your kids are picky breakfast eaters, have them grab a handful of raisins, some dry cereal, or even some leftover pizza to nibble on when they're ready. Parenting.com: 13 rise & shine breakfast ideas

Mama always said: Put on a coat, you'll catch a cold

The only thing your kid is likely to get from being outside in the cold is... cold. "When I was growing up, my grandmother insisted I bundle up in even slightly cold weather because 'getting cold could make you sick,'" says Sue Stevens of Arlington, Texas. "I knew from my school health class that she was wrong and that germs make you sick. I let my own son play in the rain, sleep under a ceiling fan, and play soccer in short pants in freezing weather. He never had colds afterward!" That's because only cold and flu viruses cause those illnesses.

There is some research that suggests that prolonged exposure to chilly temps may dampen the immune system because it puts a strain on the body. But that's not the same as making you sick. So if your kid wants to tough out the chilly season in his skimpy but oh-so-hip hoodie, save yourself the fight. Let him!"