LONDON - UK researchers have found that a drop in the average temperature outside is linked to a higher risk of people having heart attacks.

WASHINGTON - A new study by scientists from University of Buffalo suggests that simple morning walk to school can reduce stress reactivity in children during the school day, curbing increases in heart rate and blood pressure that can lead to cardiovascular disease later in life.

LONDON - Laziness should be classed as "disease in its own right", say experts.

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