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In the study involving 216 people who were believed to be infected with the swine flu virus, or 2009 H1N1, and 600 people living in their households, the researchers sought to determine how easily people transmit the virus to one another.
It suggests that it may be unnecessary for patients to stay at home for longer than four days after they start to have symptoms.
The findings revealed that household contacts aged 18 or under were twice as likely to be infected by a patient in their household, compared to adults aged 19 to 50.
However, household members aged over 50 were the least susceptible to infection.
“At the start of the current flu pandemic we didn’t know how different factors affected the risk of transmitting the virus to other people. If we are advising people to stay at home if they develop flu-like symptoms, we need to understand the implications this might have for other household members,” said Dr Simon Cauchemez, Imperial College London.

Early bedtime banishes teen blues
Earlier bedtimes may help protect adolescents against depression and suicidal thoughts, says a new study.
Published in ‘Sleep’, the research found that adolescents with bedtimes that were set earlier by parents were significantly less likely to suffer from depression and to think about committing suicide, suggesting that earlier bedtimes could have a protective effect by lengthening sleep duration and increasing the likelihood of getting enough sleep.
Results show that adolescents with parental set bedtimes of midnight or later were 24 per cent more likely to suffer from depression and 20 per cent more likely to have suicidal ideation than adolescents with parental set bedtimes of 10 pm or earlier. This association was appreciably attenuated by self-reported sleep duration and the perception of getting enough sleep.

Adolescents who reported that they usually sleep for five or fewer hours per night were 71 per cent more likely to suffer from depression and 48 per cent more likely to think about committing suicide than those who reported getting eight hours of nightly sleep. Participants who reported that they ‘usually get enough sleep’ were significantly less likely to suffer from depression and suicidal ideation.

How to achieve a long and satisfying life
A new book, called ‘Successful Cognitive and Emotional Aging’, could be the key to know how one achieves a long and satisfying life.
Published by American Psychiatric Publishing Inc, the book’s focus is on success in cognitive and emotional realms of aging — a compelling topic in a society where baby boomers are poised to enter their golden years.
Dr Dilip Jeste and his colleague Dr Colin Depp from the University of California, San Diego School of Medicine edited the book.
With topics ranging from molecules and genes to social relationships and spirituality, the authors have compiled a collection of essays from foremost experts on behavioural and psychosocial aspect of aging, as well as prevention and intervention strategies.
In the book’s overview, they have pointed out that two-thirds of all people in the entire history of the world who lived to be age 65 are alive today.

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