Tag-Archive for ◊ Coffee ◊

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• Monday, October 17th, 2011

When the eyes getting sleepy, coffee and energy drinks can make the eyes and the concentration is maintained. But for those who must do a lot of activity at the same time, these beverages would likely reduce the ability of coordination.

A good brain coordination is necessary in certain professions that rely on the ability of multitasking. For a pilot, for example, in the same time his eyes must observe the radar while the ears to hear guidance from the control tower and the hands holding the steering control.

Coffee and energy drinks can improve concentration while doing simple jobs, but the effect does not apply to the coordination ability of the brain while doing many things at the same time. It’s when consuming the drink, coordination capabilities will decline.

This is evidenced in a study conducted by experts from Ohio State University. The study involved 30 people flying school students who were divided into 2 groups and each given a different treatment for 2 consecutive days.

On the first day, one group were given energy drinks and the others received a placebo with no effect. Treatment in each group changed on the second day, the original placebo and vice versa so energy drinks energy drinks so that the original placebo.

When compared, the skills of prospective pilots fly planes in general lower when consuming energy drinks. After deflecting the direction of the plane for example, prospective pilots who consume energy drinks take 10 seconds longer to return to the correct position.

“Caffeine, taurine, sugar and various booster stamina in sports drinks reduce the ability of the body and brain to coordinate,” said Conrad Woolsey, PhD, who led the study as quoted from Menshealth. (*Dr. Conrad Woolsey  was involved with the idea, the 3rd author on the article and was not involved with data collection or testing in the flight simulator)

Dr. Woolsey suggests, when coordination is necessary capabilities should not rely too much on energy drinks. Adequate sleep is much healthier to overcome drowsiness, without reducing the brain’s ability to coordinate and maintain concentration.

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Author:
• Friday, July 23rd, 2010

Pregnant women need no longer give up their morning cup of coffee. A research review by The American College of Obstetricians and Gynecologists had found that moderate caffeine consmption probably won’t increase the risk of a miscarriage or premature
birth.

Until recently, studies have had conflicting findings about the effect of moderate caffeine consumption on pregnancy complications but a College committee has reviewed the evidence.

“I think it’s time to comfortably say that it’s OK to have a cup of coffee during pregnancy,” Dr. William Barth, the chair of the College committee, told Reuters Health. The College’s Committee on Obstetric Practice said that 200 milligrams of caffeine a day — about the amount in a 12-ounce cup of coffee — doesn’t significantly contribute to miscarriages or premature births.

That definition of “moderate caffeine consumption” would also include drinking about four 8-ounce cups of tea or more than five 12-ounce cans of soda a day, or eating six or seven dark chocolate bars. The committee said the evidence was not clear on whether consuming more than 200 mg of caffeine a day might increase pregnancy risks.

The group considered two recent studies, each of which followed more than 1,000 pregnant women. One study, led by Dr. David Savitz of The Mount Sinai Medical Center in New York, found no increased rate of miscarriage for women who consumed low, moderate, or high levels of caffeine at different points in their pregnancy.

In the other, Dr. De-Kun Li and his colleagues at Kaiser Permanente’s Division of Research in Oakland found a higher risk of miscarriage in women who consumed more than 200 mg of caffeine per day, but no extra risk at lower levels. The committee also pointed to two other studies that found that a mother’s moderate caffeine intake did not make it any more likely she would deliver a baby prematurely.

Research has shown that caffeine is able to cross the placenta, which led to worries that it could cause miscarriage or premature birth. In the United States, about 16 percent of all pregnancies end in miscarriage and about 12 percent of babies are born prematurely.

Barth said previous studies were mixed and unclear about the link between caffeine and pregnancy risks. It was the new findings from large groups of women that allowed the committee to feel confident that moderate caffeine intake was safe.

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