Health and Medical News and Resources

General interest items edited by Janice Flahiff

No Reliable Evidence On Effectiveness of Electric Fans in Heatwaves

GE electric fan from early 20th century.

GE electric fan from early 20th century. (Photo credit: Wikipedia)

From the 11 July 2012 article at Science News Daily

A new Cochrane systematic review ***of the effects of electric fans in heatwaves has found no high quality evidence to guide future national and international policies. …

One way to try to get relief from the heat is to use an electric fan, but health experts have questioned whether this will do more harm than good. A fan might help to increase heat loss if the temperature is below 35°C [95 degrees fahrenheit] and the fan is not directly aimed at the person, but, when temperatures are above 35 °C, the fan might actually contribute to heat gain. Excess sweating can also lead to dehydration and other health problems.

One of the review authors, Dr Saurabh Gupta, a consultant in public health at Hertfordshire Community NHS Trust in the UK, said: “It is important, to know about the potential benefits and harms of electric fans when choosing whether to use one. This is true if you are simply making a decision about your own use of a fan, but it also applies to broader public health decisions, such as whether to give electric fans to groups of people during a heatwave…

 

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Home The Cochrane Collaboration

 

 

                           Working together to provide the best evidence for health care

Cochrane Reviews are thorough unbiased detailed systematic reviews of research in both human health care and health policy.

Some Cochrane Reviews investigate whether or not an intervention (as an antibiotic) really produces a specific intended effect (as reducing sore throat symptoms).

Other Cochrane Reviews look for evidence that a diagnostic test is accurate for a given disease within a specific patient group.

Evidence is largely based on clinical trials.

All Cochane Reviews address specific narrowly defined questions. Each review is the product of a independent team of health care and information professionals (as librarians). These scientific reviews are the result of many hours of analyzing original research. Each review can take up to two years to publish.

While there are presently over 4000 Cochrane Reviews, the Review collection does not cover every possible intervention, drug, or diagnostic test.

However, the abstracts of all reviews are available to the public. Many have plain language summaries.

(For suggestions on how to get free full text of Cochrane Reviews, please click here).

How to search for Cochrane Reviews

**Go to Cochrane Reviews- Explore

**Search for reviews using the simple search at the page or the advanced search option.

The Cochrane Review Home page contains informational links, including

**The Top 50 reviews (Past 24 hours, 7 days, and 30 days)

**Special Collections from the Cochrane Library

**Cochrane Library Editorials

July 12, 2012 - Posted by | Public Health | , ,

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