What Power Naps Do To Your Memory
For decades researchers have studied the science of sleep. Sleep problems are common in North America so the need to understand the suspension of consciousness is huge. Today scientists say with confidence that sleep not only provides our bodies with the restorative rest it needs, it can help our memory.
Short Naps and Sleep Problems
Evidence continues to indicate that power naps can boost our memory. U.S scientists say that a short nap allows the brain to absorb new information. In one study conducted by the University of California, healthy adults were given a difficult learning assignment in the morning. Half of them were then sent for a power nap. When the tests were repeated, those who took a nap far outperformed those who did not. The researchers examined their brain activity and explain that the retention and processing of information is happening in a sleep phase between dreaming sleep and deep sleep referred to as “stage 2 non-rapid eye movement sleep”. During this period of rest, fact-based memories move from a temporary storage area in the brain to an area called the pre-frontal cortex. The pre-frontal cortex is the part of the brain that is responsible for abstract thinking and thought analysis. It is also associated with memory. It enables people to learn and concentrate.
Burnout and Memory Issues
Harvard University reports that burnout can lead to forgetfulness and that we should not feel bad about taking a power nap to fix the problem. The studies they’ve conducted show that as the day goes on people become irritated and frustrated; their mental performance declines. In visual computer task testing they discovered that the scores of participants worsened later in the day, but those who had a 30 minute power nap were able to avoid bad results.
Time Limits
A power nap is essentially a short sleep that ends before you actually go into a deep sleep stage. It is intended to quickly revitalize you. Researchers say a short 20 to 30 minute nap can boost your memory, make you feel more alert, and put you in a better mood. If your naps are too long they can actually have the opposite impact; they can make you feel sluggish and moody. Additionally, they can cause you to have difficulty sleeping at night.
According to medical experts, most of us experience a sleepy feeling sometime between 1 p.m. and 3 p.m. A quick power nap at this time is therefore ideal and should not interfere with night sleep.
Doctors warn people about habitual napping. This is when people have short power naps several times a day. This can lead to sleeping problems such as not being able to sleep at night. Lack of sleep at night can cause forgetfulness and a host of other health related complications. The bottom line…the nap is not a replacement for a good night’s sleep.
Scientists have pointed out that as we age, we experience a reduction in sleep. We also have more difficulty learning, and experience forgetfulness more. Researchers are now trying to determine if there is a connection between this reduction in sleep and the decrease in mental function in the elderly.
To those who live in places like Mexico, Spain, and the Philippines taking a power nap is nothing new. In North America the idea may be a little more difficult to adjust to, but a study published in the Archives of Internal Medicine found that people who took naps on a regular basis were 37 percent less likely to die from ailments like heart disease.
Medical researchers say few in their field will argue against power naps. They say it is the best approach to restoring your body and mind at the same time.
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