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Warming houses linked to better health

That toasty warm building in winter may not just be psychologically comforting.

According to a UK study, improving buildings to enhance "thermal comfort" - with central heating or insulation, for instance - pays off in both physical and mental well being.

"I think the main message is that housing improvement can improve health, especially if it's warmth and energy improvement targeting people with respiratory illnesses," said Hilary Thomson, the study's lead author from the Medical Research Council in Glasgow, UK.

Several studies have tied poor housing conditions to poor health, but there are some questions about the quality of evidence for that link, according to Thomson and her colleagues.

Researchers have trouble teasing apart the effects of poor housing and other factors that may play a role, such as age and poverty, Thomson and her team write in The Cochrane Library.

The most common housing conditions tied to poor health are air quality, heat and humidity conditions, radon, noise, dust, tobacco smoke, falls and fires.

To see whether improving physical conditions in homes could translate into tangible improvements in residents' health, the researchers pooled information from 39 previously published studies on the topic.
The past research examined a number of possible housing improvement, including refurbishing existing homes, relocating people to new homes and providing bathrooms.

Most of the data from these studies could not e combined into a single pool for analysis because the research designs were too different, so Thomson's team concentrated on the results that stood out across studies.
Overall, they found that programs that improve temperature control in the homes of people who are in poor health and in the worst quality housing lead to the greatest benefit, compared to improvements that are applied to whole areas of housing regardless of need.

For example, two studies from New Zealand targeted people who lived in homes with inadequate heating. They added insulation to better regulate the houses' temperature and found that the number of children and adults listed in "poor or fair health" fell by about 40 percent, relative to a comparison group with no housing changes.

A UK study found more mixed results when it looked at heating improvements throughout an entire community, without a focus on particularly needy homes.

Thomson's group cautions in their report that the results from the New Zealand studies could have been more robust because they targeted a specific population while the UK study did not. 

Rebecca Morley, executive director of the National Center for Healthy Housing in Columbia, Maryland, told Reuters Health that she felt the new review was incomplete, because it did not look at studies on lead, radon and other household hazards.

"We certainly want people to be comfortable and warm in their homes, but it's not the only concern in the U.S.," said Morley, who was not involved in the research.

But Thomson said they excluded those hazards from the review because they are already known to be toxins.

 SOURCE: (Reporting from New York by Andrew Seaman at Reuters Health; editing by Elaine Lies)


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