Scientists consider too much daytime sleep to be wrong and link this habit to an increased risk of cardiovascular disease.
Some research in recent years has begun to show that daytime naps may increase the risk of certain health problems, writes Express Health. In particular, there is emerging evidence that daytime sleep can affect the cardiovascular system. Scientists from Japan, whose work was published in the journal Sleep, concluded that
“Too much sleep during the day can increase the risk of cardiovascular disease by 82 percent.”
The experts' conclusions were made after analyzing 21 observational studies involving 307,237 people. The researchers concluded that daytime sleep that lasts longer than an hour is unsafe for the health of the cardiovascular system. In addition, their calculations show that improper daytime rest, in addition to heart problems, contributes to the development of diabetes –
“the risk of developing diabetes increases by 46 percent if daytime sleep lasts more than an hour.”
Scientists noted that sleep is an important component of a person's lifestyle, and specifically daytime sleep can have both positive and negative effects on overall health – but why, this is still not entirely clear. A recent study by the American Heart Association (AHA) found that people (ages 40 to 69) who regularly nap during the day had a 24 percent increased risk of stroke.
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Taking into account the identified trend, experts advise not to sleep for a long time during the daytime. If you experience excessive sleepiness, you should consult a doctor.
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Earlier, MedikForum.ru wrote that nighttime insomnia may be a symptom sick liver.