Category: Health (page 15 of 27)

drunk on diet soda

diet soda

Some people may get drunker when mixing alcohol with diet sodas compared to regular soda

A new (and small) research study suggests that mixing diet soda with alcoholic beverages can lead to greater intoxication than having alcohol with a sugared mixer.  NPR’s Allison Aubrey spoke with the researcher about the findings:

So what was the motivation for the new study? “I wanted to know if the choice of a mixer could be the factor that puts a person above or below the legal limit,” writes Marczinski, who’s a professor at Northern Kentucky University.

And it turns out, diet soda might just push you past that tipping point. Marczinski’s study found that the average BrAC was .091 (at its peak) when subjects drank alcohol mixed with a diet drink. By comparison, BrAC was .077 when the same subjects consumed the same amount of alcohol but with a sugary soda.

“I was a little surprised by the findings, since the 18% increase in BrAC was a fairly large difference,” Marczinski tells The Salt via email.

Marczinski says she also wanted to determine if the volunteers in her study (eight women, eight men) would notice any differences between the two mixers. Not so much, it turns out.

The subjects didn’t report feeling more impaired or intoxicated after drinking the diet soda mixer, compared to the sugary soda. Experts say this may put them at an increased risk of drinking and driving.

 

a new tuberculosis vaccine falls short

tuberculosis

Tuberculosis bacteria

A new study of the potential tuberculosis vaccine, modified Vaccinia Ankara virus expressing antigen 85A (MVA85A), has failed in a study of 3000 infants in South Africa. Scientists had hoped it would help improve protection against the infection when used with the current vaccination (BCG). The study was a double-blind, randomised, placebo-controlled trial of healthy infants (aged 4—6 months). The infants were randomly administered BCG with either MVA85A or a placebo of Candida skin test antigen then examined every 3 months for up to 3 years. During the course of the trial, the rates of serious or systemic infection from tuberculosis were similar for the group that received the new vaccine enhancer compared to those given the placebo. The researchers did note that the MVA85A does appear to be safe and that no adverse effects were cause by the antigen itself. This was the first efficacy trial of a tuberculosis vaccine in infants in more than 45 years. More details here at The Lancet [subscription required].

pollution linked to smaller babies

pollution

Pollution in the air is linked to the birth of underweight newborns

In a new study, published in Environmental Health Perspectives this week, shows that high levels of pollution are linked to smaller babies. The study looked at levels of particulate mater (PM) in the United States, Korea and Brazil and correlated it to the weight of newborns.  From Scientific American:

By the authors’ calculations, each increase in PM10 by 10 micrograms per cubic meter (μg m–3) was associated with a 3% higher chance of an infant being underweight and with an overall average weight reduced by 3 grams. That reduction in average weight tripled to 9 g when the authors adjusted for local variables such as maternal age or tobacco use. The calculations took socioeconomic status into account.

The median PM10 value varied across the 14 sites, from 12.5 μg m–3 in Vancouver to 66.5 μg m–3 in Seoul. For a subset of centers that included information on PM2.5exposure, the odds of lower birth weight increased by 10% for each increase in exposure.

As Trasande explains, the risks are small at the individual level, but “on a population basis, a shift can produce large increases in the percentage of low-birth-weight infants”, he says. Smoking, alcohol and drug use and poor maternal health are also linked to low birth weights.

In a study of more than 220,000 US births published last month, Trasande and his colleagues found that outdoor air pollution was associated with longer hospital stays and greater health-care costs. In 2010, 8.2% of infants born in the United States were of low birth weight.

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