If you dream a long life, start your dream from to improve your sleep quality. A study proved that most people who reach their age at 100 years are having a good sleep quality.
“The age and health condition are the most two important things that are also most influence the duration and quality of sleep,” said Danan Gu, Ph.D. from Portland State University who led the study, quoted from Science Daily.
Since 2005, Gu and his colleagues made observations to 15.638 China’s residents who aged 65 years and over, in all 22 provinces. There are 2.794 people who age more than 100 years, while those aged 90-97 years as many as 3.927 people.
There are 65% of participants who have good and very good quality sleep category. This means with an average duration of 7.5 hours a day including naps. Surprisingly, participants with the age of 100 years and over have the quality of sleep is better than 70 percent of age 65-79 years.
The health issues are also closely related to the quality of sleep. There are less than 46% from this study that participants who have a health problem can sleep in good quality. This happens to participants who are experiencing in anxiety, chronic illness, or life unpleasant frequently.
Another fact is revealed, the relationship between the sex genders with sleep quality. The experiences deep sleep on male participants is 23% more than in female participants.
This survey actually was not designed to see the cause-effect relationships. However, from existing data, the observers believe there is a strong correlation between quality of sleep to the health and the longevity.
China deliberately chosen as the location of the study, because the elderly population in this region was recorded the highest in the world. Based on World Bank data, there is nearly 40.5 million from the total 1.3 billion population of China has the age of 75 years and over.
This observations actually done since 2005 and have been published in the journal “Sleep” on May 1, 2010 edition. At the end of this year, the same team will also publish the years 2008-2009 as the comparison data.