Despite ongoing research, experts are still unable to agree on how much sleep adults need and what kind of sleep deficits are harmful to them. People should ideally sleep 6 or more hours every night.
No, you cannot. Even if people sleep more than twice as long, they will still be impaired by sleep deficiency. Sleeping five hours out of a 24-hour day isn't enough, especially in the long run. It is detrimental to your health if your sleep is less than seven to eight hours.
Insomnia can shorten one's life. There's a strong correlation between low sleep duration and higher mortality.
People who sleep less than 5 hours per night on average died at a higher rate than those who sleep 6 to 7 hours per night on average. People who averaged 8 hours of sleep each night died at a lower rate than those who averaged fewer hours.
During deep sleep, a number of regeneration processes take place.
Studies demostrate for the first time that prolonged periods of lack of sleep is associated with irreversible brain damage for late-shift employees, students and other night owls.
In particular, sleep deprivation impairs episodic memory as well as hippocampal function. There is still some controversy as to whether one or two nights of recovery sleep can fully restore the brain and cognitive functions after sleep deprivation.
Yes, sleep deprivation will reduce your lifespan. The CDC says American deaths from cardiovascular disease-the number one killer-are also doubled when people sleep less than five hours a night.
The Lancet reported that sleep deprivation among students can overstimulate parts of the brain and even lead to permanent brain damage. This is the result of the brain's 'neural plasticity', which refers to its adaptability in new circumstances.