London, Sept 3 : The time you spend working is the single most important factor that has an impact on your sleep, reveals a new study.

The study, by researchers at the University of Pennsylvania, was carried out on nearly 50,000 US participants.

The participants were questioned on three different occasions - in 2003, 2004 and 2005 - and asked how they spent their time between 4am the previous day and 4am that day.

London, Sept. 3 : A drug that lowers blood pressure among diabetics may provide a significant means to save tens of thousands of lives, say UK scientists.

A five-year study conducted by them has shown that using Coversyl Plus-a combination of medication like ACE inhibitor and diuretic drugs, which are currently offered only to patients with high blood pressure-reduces the risk of death from heart-related problems and kidney failure by 18 per cent.

Washington, Sept 3 : Researchers have developed an improved dosing formula that can make the process of prescribing blood thinners faster and safer.

The formula called anticoagulant warfarin has been developed for doctors to estimate the appropriate dose for patients.