The value of bed rest on human health will be the subject of a four-month study by NASA scientists at the University of Texas Medical Branch in Galveston.

Participants will stay in a special research unit for the duration of the study and eat a controlled diet

Children living on streets with plenty of trees are less likely to have asthma than children who have fewer trees where they live.

That information comes from a study of children living in 42 health service districts in New York City, where asthma is the leading reason for hospital admissions of children under the age of 15

Australian scientists say it is may be possible to lose weight without cutting back on food.

Researchers manipulating fat cells in mice scientists in Melbourne were able to speed up metabolism of a person. When scientists removed an enzyme known as angiotensin converting enzyme, or ACE, the mice were able to eat the same amount as others but they burned more calories and gained less weight

More and more couples are waiting to expand their families until the woman is into her 30s or older. Work, travel and saving money before having a baby are all factors in the decision

Tidying the house as little as 20 minutes a week can give mental health benefits.

Mark Hamer, Ph.D. of the University College London and his colleagues in the British Journal of Sports Medicine said that 20 minutes of constant exercise every week, be it cleaning or jogging, can impact upon depression