neurologist, member of the Association for Interdisciplinary Medicine
According to a study by French and British scientists, a person’s sleep improves after age 53. By age 65, people average more than seven hours of sleep per night. Is this the case?
On the one hand, it can be explained by lifestyle changes. Men and women between the ages of 20 and 53 would probably like to sleep more than seven hours a night, but can’t afford it.
This is the most active period in any person’s life, involving education, starting a family, raising children, and career development. People have a little more time for sleep when these main tasks have already been accomplished.
On the other hand, it is known that children have the maximum duration of sleep – eight to nine hours a day. Their brains are processing a huge amount of information that they have not had to deal with before.
Over the years, there is a plateau in sleep duration of seven to eight hours. After the age of 65, there is a decrease in nightly rest.
There are many reasons for this:
- A decrease in motor and intellectual activity (the person is less tired);
- episodes of short sleep during the day (watching TV or reading);
- reduced production of neurotransmitters in the brain, which are also responsible for sleep, even at the slightest strain.
This means that a person of retirement age needs less recovery. Due to this, there is also less deep sleep. In turn, younger people are more active, move a lot, get more new information and sleep more.
For example, in a person of 20-30 years of age, the minimum limit of the norm of deep sleep is about 19% and above. In a person of 60 years of age, the boundary reaches about 7.7%.
The same applies to the number of awakenings at night: the older people are, the more often they wake up, because sleep becomes more superficial and sensitive.
To determine whether sleep really gets better with age, it is necessary to take into account the level of anxiety of a person, as well as the brightness and novelty of the events that have happened to him recently. It is known that dreams are related to what we encounter in the last one or two days.
Recollection of dreams depends on the phase of sleep in which a person woke up. Thus, vivid dreams people see in the phase of rapid sleep. If a person wakes up, he clearly remembers what he dreamed.
If he continues to sleep and goes into the phase of slow-wave sleep, he has no memory of the dream when he wakes up. The frequency of awakenings and the depth of the night’s rest depend on the level of anxiety.