Are You Normal?
Calm Down or Else
exercise is important? why u hate it?
Does Green Tea Help the Heart?
A new study shows that the beverage, which is more popular in Eastern cultures, can protect heart arteries by keeping them flexible and relaxed, and therefore better able to withstand the ups and downs of constant changes in blood pressure. Led by Dr. Nikolaos Alexopoulos of Athens Medical School in Greece, the researchers found that among 14 subjects, those who drank green tea showed greater dilation of their heart arteries on ultrasound 30 min. later than those drinking either diluted caffeine or hot water. That's because, the scientists speculate, green tea works on the lining of blood vessels, helping cells there to secrete the substances needed to relax the vessels and allow blood to flow more freely. It's the flavonoids in the tea, which work as antioxidants and help prevent inflammation in body tissue, that keep the vessels pliable. These substances may also protect against the formation of clots, which are the primary cause of heart attacks. "We found very promptly [that] after drinking green tea, there was a protective effect on the endothelium," says Dr. Charalambos Vlachopoulos, a cardiologist and one of the authors of the study.
All it took, says Vlachopoulos, was 6 g of green tea, which amounts to 3 to 4 cups. To make sure the dilation effect was not due to the small amounts of caffeine found in green tea, the group compared the arterial sizes in the green-tea drinkers with those consuming a diluted caffeine beverage and found no change in arterial size in the caffeine drinkers. Even more intriguing, the beneficial effect seems to be long-lasting and cumulative. When the doctors measured the green-tea drinkers' arteries two weeks after daily consumption of the beverage, they found that their vessels were more dilated than they had been at the beginning of the study. "It's something that needs to be investigated, but we think that if someone takes green tea for one or two months, the beneficial effect will be even greater," says Vlachopoulos.
But experts caution that one study isn't enough to catapult green tea to wonder-drink status. Dr. Robert Eckel, a professor at the University of Colorado, Denver, and past president of the American Heart Association, notes that endothelial function is affected by a number of factors, including large doses of vitamins E and C. "Green-tea consumption may have beneficial effects on the arteries, but we should stop short of translating that into a recommendation that everybody should be drinking green tea because it's been proven to reduce heart attacks and strokes," he says. He acknowledges, however, that early studies hint that green tea may be a good addition to a heart-healthy diet. The American Heart Association does not yet include the beverage in its dietary recommendations, but more studies like this one may change that. In the meantime, if you're drinking tea, it might not be such a bad idea to go green.
Should I vaaccinate my baby?
The following is a list of vaccine changes that parents have requested and that some pediatricians have agreed to make. It does not include a discussion of the pros and cons to each approach, or a discussion of whether vaccines and autism are even linked, but rather a list of some approaches being used by some pediatricians and parents.
1. Delaying the first hepatitis B shot
Currently, newborns receive hepatitis B shots before they're discharged from the hospital.
"I've never understood why we give this at birth," said Dr. Richard Frye, assistant professor of pediatrics and neurology at the University of Texas Medical Center at Houston.
Hepatitis B is spread by having sex with an infected partner, by sharing needles, by sharing razors or toothbrushes with an infected person or by contact with blood or open sores of an infected person.
"I don't know babies who have sex or share needles," said Dr. David Traver, a pediatrician in private practice in Foster City, California.
Lavin says that instead of giving the hepatitis B shot at birth, he routinely gives it when a baby is 2 months old.
One exception: If a mother carries hepatitis B, her baby must receive the vaccine and treatment for hepatitis B infection.
2. Not doing some shots at all
The pediatricians interviewed for this article were unanimous on this point: Not all diseases are created equal. Some diseases for which children are vaccinated are easier to catch than others, and some are more deadly.
For example, Petters-Armitage told her doctor she wasn't as worried about chicken pox or rotavirus as she was about diseases like polio and pertussis. Even though she says he disagreed with her, he abided by her wishes and didn't give her second and third children vaccinations for chicken pox and rotavirus.
The pediatricians interviewed for this article advise parents that if they're concerned, they should sit down and discuss with their pediatricians the severity of each disease before proceeding with vaccinations.
3. Checking for 'titers' before giving booster shots
For many vaccines, such as chicken pox, children receive boosters to "boost" the immunity received from a previous shot. Some children, however, might not need the booster because they had an adequate immune response to the first shot.
Pediatricians sometimes will do a blood test to check a child's titers. "Checking titers" refers to measuring the amount of antibodies in the blood, an indication of whether the person is immune to a certain disease. Checking titers isn't routine and sometimes is not covered by insurance.
"If you came to me and said you wanted to check titers, and you'll pay for it, would I do that for you? I would," said Dr. Laura Jana, a spokeswoman for the American Academy of Pediatrics.
4. Spreading the vaccines out over a longer period of time
This is the hallmark of the Sears Schedule, an alternative vaccine schedule developed by pediatrician Dr. Robert Sears.
Sears' patients bring their babies in for shots seven times between the ages of 2 to 9 months, never receiving more than two shots at each visit.
Under the CDC schedule, children come in three times during that age range, receiving sometimes five shots at one visit.
5. Splitting up combined shots
Several vaccinations are combined into one shot. For example, measles, mumps and rubella are put together into one injection called MMR, and diphtheria, tetanus and pertussis are put together into one shot called DTaP.
MMR is available as three injections, but most doctors don't have them. If you want to separate out these shots, you may have to get a prescription and find a pharmacy that will order them for you and then give them to the doctor for injection.
Some doctors do offer the shots separately. Sears gives measles, mumps and rubella shots separately and at three different ages. Lavin said he's received so many requests to separate out the MMR, he's ordered the separate shots.
Pertussis is not available separately, so even doctors like Sears, who offer an alternative schedule, give the DTaP shot.
The pediatricians we talked to said the key is to talk to your doctor about whether an alternative schedule is best.
"It's a talk. It's a whole appointment," Traver said. "Call the receptionist and say you'd like to make an appointment with the doctor to discuss immunizations."
Another consideration: what's best for your child. For example, in the case of Hannah Poling, the federal government found that vaccines she received as a toddler "significantly aggravated" an underlying illness that predisposed her to symptoms of autism. The "vaccine court" ordered that her family be compensated financially.
It's not entirely clear what family history would put your child at risk for vaccine problems, but Frances Page Glascoe, a professor of pediatrics at Vanderbilt University Medical Center, says parents should look back at least ask the question.
"I would look at Mom, Dad, siblings, aunts, uncles, cousins who had developmental disabilities, including language disorders and autism spectrum disorder," she said. If parents find such a family history, "that would cause me to discuss an alternative vaccination schedule."
Jon Poling, Hannah's father, says it's clear to him now that he should have been more wary.
"We have autoimmune disorders on both sides of the family, and Hannah had multiple febrile infections with ear infections and horrible trouble with eczema," he said. "All of those are red flags that a child is at risk."