Certain workout-booster and fat-burning products, sold in recent years by retailers like GNC and Vitamin Shoppe, are illegal and may present serious health hazards to consumers, federal health regulators have determined.
¶ With names like Jack3d and OxyElite Pro, the popular products contain a stimulant known as dimethylamylamine, or DMAA for short. In a public warning late Thursday, the Food and Drug Administration said that the stimulant did not qualify as a legal dietary supplement ingredient and that it could raise blood pressure, potentially causing heart attacks and other health problems.
¶ Since early 2008, the agency has received reports of 86 health problems, including at least five deaths, in consumers who used DMAA products. Although such reports do not prove that the stimulant directly caused the health problems, agency officials warned people not to consume the ingredient.
THE health studies that conclude that people should sit less, and get up and move around more, have always struck me as fitting into the “well, duh” category.
But a closer look at the accumulating research on sitting reveals something more intriguing, and disturbing: the health hazards of sitting for long stretches are significant even for people who are quite active when they’re not sitting down. That point was reiterated recently in two studies, published in The British Journal of Sports Medicine and in Diabetologia, a journal of the European Association for the Study of Diabetes.
Suppose you stick to a five-times-a-week gym regimen, as I do, and have put in a lifetime of hard cardio exercise, and have a resting heart rate that’s a significant fraction below the norm. That doesn’t inoculate you, apparently, from the perils of sitting.
The research comes more from observing the health results of people’s behavior than from discovering the biological and genetic triggers that may be associated with extended sitting. Still, scientists have determined that after an hour or more of sitting, the production of enzymes that burn fat in the body declines by as much as 90 percent. Extended sitting, they add, slows the body’s metabolism of glucose and lowers the levels of good (HDL) cholesterol in the blood. Those are risk factors toward developing heart disease and Type 2 diabetes.
“The science is still evolving, but we believe that sitting is harmful in itself,” says Dr. Toni Yancey, a professor of health services at the University of California, Los Angeles.
Health Hazards of the Traveler: Appendicitis in Antarctica- fortunately, scientist had Novocain and a scalpel
If you’re frustrated with medical care in the United States, try getting appendicitis in Antarctica. This potentially deadly condition can strike essentially anyone at any time—and no time was less opportune for Leonid Rogozov than April 30, 1961, at Novolavarezskaya Station, when the 27-year-old Russian scientist was the only doctor within 1,000 miles. After several days of pain, Rogozov concluded he had appendicitis and might die unless he did something. So he lay down in a hospital cot, had assistants tilt a mirror just above his lower belly, administered a shot of Novocain and called for a scalpel. In an epic feat of bravery and anatomical mastery, Rogozov sliced himself open, found his appendix, removed it, sutured himself shut again and proceeded with the finer things in life at the bottom of the world. A similar episode occurred on February 13, 1984, when Dr. Igor Mogirev removed his companion Valentin Gorbachev’s appendix during a tractor journey between an Antarctic landmark known as Dome C and Mirny Station, from which the team was about 600 miles away. The operation was successful—and conducted in the blistering cold after the diesel heater was shut off to keep the fumes from entering the tent and Gorbachev’s abdominal cavity.
The onset of appendicitis, which involves an organ that we don’t even need to begin with, often causes pain around the belly button that then “moves” to the lower right corner of the abdomen, according to this medical advice website. Such a pattern of pain is a flaming red flag, and if nausea, constipation, swelling of the abdomen and fever follow, one should seek aid promptly. May you not be the only doctor on the continent. And if you are, here’s hoping you brought the Novocain. Of course, the human body is a complex piece of living geography, and ailments may strike in many forms, in many hard-to-reach nooks and crannies. Following are a few illnesses and conditions to be wary of when far away from home.
My wife and I recently took our three sons to Benihana for dinner. It’s their favorite restaurant, thanks to the unbeatable combination of airborne food and machete-size knives.
But what I noticed was the noise: the hiss of the soy sauce on the grill, the escalating chatter of the crowd—and our young sons, who are loud beyond comprehension. Each carried a little plastic trumpet from a birthday party, so it was like being followed around by our own private South African soccer game. We finally pried the ghastly instruments from their hands.
Noise is one of the great under appreciated health hazards of our day, damaging not just our hearing, but affecting brain and heart health as well. A.J. Jacobs, author of “Drop Dead Healthy,” explains why to WSJ’s Gary Rosen.
I’ve started to become aware lately of just how loud our world is. Spend an hour listening. The chirping text messages, the droning airplanes, the flatulent trucks, the howling cable pundits, the chiming MacBooks.
And noise is no minor nuisance. It is one of the great underappreciated health hazards of our time—the secondhand smoke of our ears.
Noise pollution doesn’t get the attention of A-list diseases, but there are a few crusaders raising their voices against the onslaught. One of them is Arline Bronzaft, a professor emeritus at the City University of New York.
What’s the problem with this high-decibel world? “The most obvious one is hearing loss,” Dr. Bronzaft says. Some 26 million adults are walking around with noise-induced hearing loss, according to the Centers for Disease Control and Prevention.
Noise also has a surprisingly potent effect on our stress level, cardiovascular system and concentration. In Paleo times, a loud noise signaled a threat, so noise triggers the release of the stress hormone cortisol, which raises blood pressure.
A University of British Columbia review of 6,300 people who work in noisy jobs found that they suffer two to three times more heart problems than those who work in quiet settings. A former World Health Organization official estimates (with a bit of alarmism) that noise-induced strain may cause 45,000 deadly heart attacks a year.
Noise also wreaks havoc on the brain. Dr. Bronzaft conducted a landmark study at a public school in Manhattan’s Washington Heights neighborhood, published in the journal Environment and Behavior in 1975. Some of the classrooms directly faced an elevated subway track. Every five minutes the students heard a train rattle by. Other classrooms were tucked on the opposite side of the building, away from the noise. The difference? By the sixth grade, the kids on the noisy side were nearly a year behind. Since then, her conclusions about the effects of noise on concentration have been backed up by a pile of other studies, on both students and adults.
After meeting Dr. Bronzaft, I pledged to turn down the volume on my own life. I started in my kids’ room. I dug out all of their beeping, yammering electronic toys and spent a half-hour putting masking tape over the plastic