Almost 11% of people do not notice a micro stroke
American scientists have found that 10.7% of people suffer a micro-stroke without even suspecting it: there are no obvious signs of what happened, but the risk of recurrent stroke increases.
Micro-stroke is insidious because the focus of brain tissue death is small, and many may simply not feel a stroke. Meanwhile, the risk that a stroke will repeat on a much larger scale in the future increases many times. In particular, as a result of repeated stroke, there is a high risk of memory damage.
The measure to prevent recurrent stroke is simple: from time to time, a magnetic resonance examination of the brain should be performed, even if there are no signs of a micro-stroke.
Periods of life are associated with songs
A study conducted at the University of Kansas proved that every period of a person's life is associated with a popular song.
The study involved more than 120 people who, with an interval of five years, had to identify songs with which they associate certain periods of their lives. In most cases, the options voiced by people today and five years ago coincided.
Scientists suggest that for each person a certain period of life is associated with a particular composition, remembering which, you can recall more specific details of life during this period.
The pain experienced is stored in neurons
This was proved by the results of a study conducted by neurologists from McGill University (Montreal, Canada). Previously, neurologists had already recorded, but could not explain the effect of phantom pains "arising" in amputated limbs, as well as the fact that a person experiencing a painful sensation repeatedly reacts to it more strongly and often even before the actual experience of pain began.
The study showed that any pain sensation that lasts more than 5-7 minutes is stored in the "memory" of neurons, in the human nervous system. The key element of the process of "remembering" pain sensations was the PKMzeta proteinase. It is she who, by strengthening the interaction between neurons, contributes to the accumulation and preservation of the "physical" memory of pain. The longer or more noticeable the pain was, the higher the level of PKMzeta in the central nervous system (CNS). In turn, the higher the PKMzeta level, the greater the sensitivity to pain, that is, the lower the pain threshold.
The researchers, having found out this relationship, conducted a number of experiments, the purpose of which was to reduce pain sensitivity. And it turned out that blocking PKMzeta activity reduces hypersensitivity and helps to reduce chronic pain.
According to the authors of the study, its results will be especially important for those types of pain that cannot be corrected with the help of traditional medications. UnlimLuck casino