Sleep deprivation has
drastic consequences on health. Short sleep can lead to hypertension, diabetes, higher levels of bad cholesterol, obesity, brain fogginess, memory loss, inability to learn and retain new information, poor judgement and a host of other health problems.
But did you know that sleeping for long hours is also not healthier either?
In any case, it is not a healthy practice to loll in bed for long hours. Anything in excess is always bad, including sleep.
A recent
research has also found that
sleeping for more than nine hours a night is associated with having bad dreams / nightmares.
S
tephanie Rek at the University of Oxford and her colleagues performed one of the largest ever studies of nightmares in the general population.
As expected, the team found that worry and anxiety about the future, or about doing things wrong, was most strongly associated with the frequency and severity of nightmares. Worrying before bedtime obviously feeds negative dream content, increasing the chance of nightmares.
Key findings of the study:
Results reveal that sleeping for more than nine hours a night is associated with nightmares, but does not affect their severity.
Increased nightmare frequency is thought to be due to more sleep meaning a person spends longer in the late-night REM phase, which is when unpleasant dreams are most likely to occur.
Nightmare frequency and severity are also associated with worrying, hallucinations and paranoia.
Yet, it may be that nightmares cause disturbed sleep, which exacerbates pre-existing worries.
Study author Stephanie Rek said: 'Worry can be effectively treated using cognitive behavioural approaches.
'It would be interesting to do more research to see whether these alleviate nightmares.'
No association was found between alcohol use or exercise and nightmares, despite previous studies finding booze increases the amount of REM.
Unfortunately, the team didn’t look at the influence of food on nightmares.
I had written about repercussions of long sleep in the post "
Sleeping for long hours is not good for health" and interestingly, received flak for that from a commenter. Here's what the commenter had to say about it; I am also attaching my reply to him/ her.