Groundbreaking national health survey starting soon

In the next few days, a groundbreaking national health survey is planned to be starting in British Columbia.

The survey is initiated to discover what kinds of toxic chemicals are present in Canadians' bodies, as well as examining other health issues such as obesity and disease other diseases.
Nearly 700 residents in the province will be surveyed.

By the end of 2008, more than 5,000 Canadians between the ages of 6 and 79 will have been tested.
Participants must agree to a series of physical exams, fitness testing and blood and urine tests. They'll also be required to wear an activity monitor for seven days.

According to Jeanine Bustros, the director of the physical health measures division of Statistics Canada, the survey could have major significance for health policy, depending on the findings.

"This survey will allow us, for the first time, to have a benchmark," she said.

"To be able to measure: Are we getting better? Are we getting worse?, in terms of the levels of contaminants in the Canadian population."

StatsCan will put the findings together for Health Canada and Canada's Public Health Agency. The results will become the first-ever comprehensive health study that directly measures things like obesity, lung function, chronic disease and levels of toxic chemicals in the blood.

Individual health results will be , but will be provided to participants who request them, within weeks of testing.

Only Canadians who are contacted by Statistics Canada are eligible to participate.
The results of the survey are confidential and protected by privacy laws, but will be given to participants within weeks after testing on request.

Source: CBC News

Sleep has great effect on behavior and weight of children

The length of sleep at night, can affect children's behavioral patterns and lead to changes in eating habits, according to a new study conducted by researchers at the University of Auckland, New Zealand.

Children who slept for less than nine hours a night, were more likely to have behavioral problems and also to become overweight or obese, the study indicated.

"Short sleep duration was associated with a three-fold increased risk of the child being overweight or obese," said Ed Mitchell, the study's author in a release.
"Attention to sleep in childhood may be an important strategy to reduce the obesity epidemic."

The study examined the sleep patterns of 591 children using 'actigraphy' which is a method of charting movement in sleep without the use of invasive tools.

The children were assessed at birth, at one year, at 3½ and at seven years.

The researchers in New Zealand determined that the children spent on average 10.1 hours in bed per night.
This differed at different times of the week, in different seasons and in cases where the kids had brothers or sisters.

The researchers state that the recommended amount of sleep for children in preschool is 11-13 hours a night and 10-11 hours for children who are school age.

The study will be published in the January 1st issue of the Journal Sleep.

Source: CBC

House dust greater health risk for kids than lead paint

Canadians may be exposed to a wide variety of metals, chemicals and pesticides on a daily basis as the result of a seemingly harmless domestic nuisance: house dust.

It's a potential health hazard that scientists are only beginning to understand.
Health Canada and the Public Health Agency of Canada have embarked on a landmark four-year national study to determine levels of metals and chemicals in house dust across the country, and how health risks should be addressed.

Dust typically contains a variety of toxins released by common household products including plastics, electronics, furniture, garden soil and lead paint, which is common in older homes.

Scientists don't know for sure where all the toxins commonly found in dust come from.
They also don't know the typical concentration of metals and other toxins in house dust.

Unlike lead paint on toys or chemicals in plastic, scientists say house dust presents a far greater, unique risk because the loose, free particles can be easily ingested by children crawling on the floor or may be inhaled when dust becomes airborne.

Research has linked lead, flame retardants and pesticides found in house dust with the accumulation of these toxins in children's bodies.

"We've found high levels of lead in house dust is associated with higher blood lead levels in kids," said Paul Lioy, director of the exposure science division of the Environmental and Occupational Health Sciences Institute, at jointly sponsored by Rutgers University and the University of Medicine and Dentistry of New Jersey.

"We don't know what typical concentrations are for metals in house dust and other substances," said Pat Rasmussen, research scientist at Health Canada and principal investigator of the national house dust study.

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Japanese study finds: Green Tea halves risk of Prostate Cancer

Drinking green tea may reduce the risk of advanced prostate cancer, according to a study by researchers at Japan’s National Cancer Center.
It finds that men who consume 5 cups a day or more could halve risk.

It said men who drank five or more cups a day might halve the risk of developing advanced prostate cancer compared with those who drank less than one cup a day.

“This does not mean that people who drink green tea are guaranteed to have reduced risk of advanced prostate cancer,” said Norie Kurahashi, a scientist who took part in the study.

Prostate cancer is much less common among Asian men than Western men, and that may be partly due to the effects of the high consumption of green tea in Asia, the study said.

But it said further studies are needed to confirm the preventive effects of green tea on prostate cancer, including well-designed clinical trials.

The study, published in the American Journal of Epidemiology, compiled data from 50,000 men aged 40-69 over a period of up to 14 years from 1990.

British charity Cancer Research K says on its Web site that a study of almost 20,000 Japanese men published in the British Journal of Cancer in 2006 found no relationship between green tea and prostate cancer.

Reuters