The study advocated for a minimum of six and a maximum of eight hours of sleep daily –
Bed time below or above the set limit, according to the study, could lead to early death – Study said oversleeping could also signify health complications like cardiovascular diseases
A recent health research has warned that people who sleep for more than eight hours per day risk dying faster.
According to the study published in the European Health Journal on Wednesday, December 5, deaths associated with heavy sleeping were reported at a higher frequency than those of people who slept for exactly six, seven or eight hours.
Lead researcher Chuangshi Wang of Perking Medical College in China, attributed the possible reason for the trend to underlying health conditions causing the subjects to sleep longer.
Wang singled out cardiovascular diseases that he observed encouraged oversleeping while at the same time played a role in increasing mortality rates.
The research sampled a population of 116,632 people from 21 countries aged between 35 and 70 years who had their sleeping patterns closely monitored for about eight years.
Results revealed that for every 1,000 people who slept for the recommended six to eight hours per night, about eight developed cardiovascular complications or died every year.
The number of deaths and health complications, however, rose to 10 per 1,000 for those who slumbered for nine hours while for those who slept for 10 hours, their numbers surged to 15 per 1,000.
The study also revealed that those who slept for less than six hours also risked dying faster than average sleepers with their death or complication, with their numbers standing at 9 for every 1,000.
However, the study noted that those who enjoyed daytime nap to compensate for shorter night times sleep lowered their risk of dying or developing cardiovascular diseases.
At the same time, it warned against unnecessary and elongated daytime slumber which had capacity to extend bed time beyond the recommended maximum of eight hours.
“Estimated total sleep duration of six to eight hours per day is associated with the lowest risk of deaths and major cardiovascular events.
Daytime napping is associated with increased risks of major cardiovascular events and deaths in those with more than six hours of nighttime sleep but not in those sleeping for exactly six of fewer hours,” the study read in part.
To help keep proper sleeping habits in check, Wang advises that regular physical exercise be embraced together with a balanced diet. He, nonetheless, urged that sleeping time and waking time be guarded in a move to avoid excessive sleeping or sleep deprivation.
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