Just a smell may detect dangerous illnesses

Even diseases have particular smells. Hard to believe?

If we look into a thrilling research, humans are able to smell sickness in someone whose immune system is highly active within just a few hours of exposure to a toxin.

"There may be early biomarkers for illness in the form of volatile substances coming from the body," explained Mats Olsson of Karolinska Institutet in Sweden.

To test this hypothesis, Olsson and his team injected eight healthy people with either lipopolysaccharide (LPS) - a toxin known to ramp up an immune response - or a saline solution.

The volunteers wore tight t-shirts to absorb sweat over the course of four hours.

Participants injected with LPS did produce a noticeable immune response, as evidenced by elevated body temperatures and increased levels of a group of immune system molecules known as cytokines, said the study published in the journal Psychological Science.

Now, the researchers asked a separate group to smell the sweat samples from t-shirts.

They rated t-shirts from the LPS group as having a more intense and unpleasant smell than the other t-shirts.

That is, the greater a participant's immune response, the more unpleasant their sweat smelled, the study noted.

"While the precise chemical compounds have yet to be identified, the fact we give off some kind of aversive signal shortly after the immune system has been activated is an important finding," said the researchers.

People with diabetes, for example, are sometimes reported to have breath that smells like rotten apples or acetone.

Being able to detect these smells would represent a critical adaptation that would allow us to avoid potentially dangerous illnesses.

ps- this is only for information, always consult you physician before having any particular food/ medication/exercise/other remedies.

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Physical activity reduses hot flashes in women

Higher levels of routine daily physical activity may be the 

more important key to a better night's sleep for many 

women who have hot flashes or night sweats, a study has 

revealed.


Researchers  focused on women with hot flashes or night 

sweats and also drew the distinction between leisure time 

and household activity.


The  women in the study, who were 54 to 63 years old, kept 

diaries rating their sleep and wore sleep monitors.


They also completed questionnaires about their physical 

activity, including routine household and care giving chores 

requiring light, moderate, or vigorous effort as well as 

sports and exercise.


The results showed that the women who had higher levels of 

activity reported better sleep and fewer night time 

awakenings.


The positive effects were mainly associated with household 

and care giving activity rather than sports or exercise.