夜里辗转难眠？你该归咎于你的办公室_BEC初级作文

夜里辗转难眠？你该归咎于你的办公室

However, the cost of all those sleepless nights is more than just bad moods and a lack of focus.

Regular poor sleep raises the risk of serious medical conditions like obesity, heart and diabetes - and can even shorten life expectancy.

Adequate exposure to natural daylight is known to be crucial for governing the body's circadian rhythm - the built-in clock which dictates our sleeping and waking patterns.

They recruited 49 office employees, just over half of whom spent the day in mostly windowless environments, while the rest enjoyed frequent exposure to daylight through windows.

Each one was quizzed on sleeping patterns, physical activity and general lifestyle.

Some of the volunteers also wore high-tech watches round-the-clock for a fortnight to measure their light exposure, levels of physical activity and sleep/wake times.

The results showed those with the most work-time light exposure snoozed an average of 46 minutes more per night than their light-deprived colleagues.

They also scored better on a sleep quality scale and reported fewer night-time disturbances.

Scientists also found they were more likely to exercise, having got a good night's sleep.

The study backs up earlier research suggesting that nurses are less likely to face burnout from work-related stress and more likely to achieve job satisfaction if they have exposure to at least three hours of daylight a day.