September 15, 2009
BehindTheMedspeak: Is your shower killing you?
Long story short: showerheads are ideal places for bacterial biofilms to thrive, and may be covering you in a daily dose of bacteria that could make you sick.
Amazing that something so routine and accepted like a morning shower may have an effect precisely opposite that intended.
Here's Amy Norton's Reuters article.
Your shower may be blasting you with germs
Your shower may not be getting you as clean as you think with a U.S. study finding many showerheads are dirty and may be covering you in a daily dose of bacteria that could make you sick.
An analysis of 50 showerheads from nine U.S. cities found that about 30 percent harbored high levels of Mycobacterium avium — a group of bacteria that can cause lung infections when inhaled or swallowed. Researchers from the University of Colorado at Boulder found the levels of Mycobacterium avium were 100 times higher than those found in typical household water.
"If you are getting a face full of water when you first turn your shower on, that means you are probably getting a particularly high load of Mycobacterium avium, which may not be too healthy," said researcher Norman Pace in a statement.
Mycobacterium avium is linked to pulmonary disease, causing symptoms such as a persistent drug cough, breathlessness and fatigue, and most often infects people with compromised immune system but can occasionally infect healthy people.
Pace said research at the National Jewish Hospital in Denver found that increases in pulmonary infections in the United States in recent decades from so-called "non-tuberculosis" mycobacteria species like Mycobacterium avium may be linked to people taking more showers and fewer baths.
He said water spurting from showerheads can distribute pathogenfilled droplets that suspend themselves in the air and can easily be inhaled into the deepest parts of the lungs.
The problem with showerheads is that the insides provide a moist, warm, dark haven where bacteria can form sticky "biofilms" that allow them to gain a foothold and eventually set up residence in the device.
The researchers, however, said it was still probably safe for most people to get into the shower and recommended people with compromised immune systems due to HIV or immune-suppressing drugs, use metal showerheads and change them regularly.
"This really shouldn't concern average, healthy people. The main concern is for people who are immune-compromised," researcher Leah Feazel told Reuters Health. The findings, published in Proceedings of the National Academy of Sciences on Monday, are based on tests of about 50 showerheads taken from nine U.S. cities, including New York, Denver and Chicago.
The researchers said showerheads are not the only potential bacterial dispersants in the home, however. Feazel said more research is needed to measure bacteria levels in household devices like humidifiers and evaporative coolers.
Here's the abstract of the paper whose findings are referred to above:
Opportunistic pathogens enriched in showerhead biofilms
The environments we humans encounter daily are sources of exposure to diverse microbial communities, some of potential concern to human health. In this study, we used culture-independent technology to investigate the microbial composition of biofilms inside showerheads as ecological assemblages in the human indoor environment. Showers are an important interface for human interaction with microbes through inhalation of aerosols, and showerhead waters have been implicated in disease. Although opportunistic pathogens commonly are cultured from shower facilities, there is little knowledge of either their prevalence or the nature of other microorganisms that may be delivered during shower usage. To determine the composition of showerhead biofilms and waters, we analyzed rRNA gene sequences from 45 showerhead sites around the United States. We find that variable and complex, but specific, microbial assemblages occur inside showerheads. Particularly striking was the finding that sequences representative of non-tuberculous mycobacteria (NTM) and other opportunistic human pathogens are enriched to high levels in many showerhead biofilms, >100-fold above background water contents. We conclude that showerheads may present a significant potential exposure to aerosolized microbes, including documented opportunistic pathogens. The health risk associated with showerhead microbiota needs investigation in persons with compromised immune or pulmonary systems.
• Running the water for 30 seconds before stepping in is a good idea
• Metal showerheads are preferable to plastic because microbes cannot cling to them as easily
Got you there, didn't I?
Come on — where else are you gonna find stuff like that?
Talking Dog Collar
For those who don't want to spring for the dog translator, there's this.
Talking Dog Collar
Keep pests from harming your pet.
This special collar uses safe ultrasonic pulses to repel fleas — no sprays or chemical dips needed.
A recordable pet tag lets you record a message (identify your pet, leave contact information, etc.).
2.75" x 1".
Are you happy?
Can this really be, at this price?
I don't know but I'm going to find out.
I'll report back in the near future.
I'm not optimistic, I must say.
Been burned far more often than not when it comes to bleeding edge tech that seems too good to be true....
From the website:
Portable Pocket HDTV
This pocket-sized, portable color HDTV receives high-definition
The unit displays content using 480 x 272
resolution on its 4-1/4" display for crisp images and sharp motion
devoid of streaking or blurring.
It provides a 16:9 screen mode for
true HD aspect ratio; its generous 60º viewing angle allows adjacent
viewers to watch programs easily.
Two built-in 1/2-watt speakers
deliver clear sound; a headphone jack allows you to listen without
Built-in antenna that collapses back into
the case; an included external antenna with a magnetic base can connect
to the unit from 80" away using its cord, allowing you to place it for
The built-in lithium-ion battery provides up to 1-1/2 hours of viewing from a 4-1/2-hour charge using the included AC
5-1/4"L x 3-1/4"H x 3/4"D.
From a GadgetVenue.com review: :"The confusing part is why they call it an HDTV. At a display resolution of 480 x 272 it certainly isn't HD standard. The only HD part of it is that it can receive HD digital broadcasts."
McHotdog Mega — True
"Across Asia, you can pick up a McHotdog Mega Breakfast Sausage" (above).
Veg McPuff Pizza.
Bacon Potato Pie.
Cheese Katsu Sandwich.
Paneer Salsa Wrap.
Little Chorizo Melt.
Chicken McCurry Pan.
Double Beef Prosperity Burger.
CBO (Chicken, Bacon and Onions).
Is is lunchtime yet?
'Beyond Thunderdome' — The Cuffs
By sisters Phoebe and Annette Stephens for Anndra Neen.
Hand made of copper, brass and nickel-silver.
cause and effect — by Charles Bukowski
Digital LCD Laser Changing Projector Calendar Clock Countdown Timer Thermometer
What, no random number generator or pedometer?
Long story short: could use more features.