Regular shaking of the head leads to thickening of the bones of the skull. Article about it published in Scientific Reports.
The brain does not tolerate blows to the head, and a strong blow can cause a concussion. In addition, regularly weaker punches also lead to serious illnesses such as dementia, especially seen in boxers and other athletes.
Now Bridgette Semple of Monash University in Australia and her colleagues have found that regular concussions also affect the skull. Scientists came to such conclusions during experiments on rats. The animals stabilized, after which some received one to three blows from a load suspended above their heads at intervals of one day. The second group of animals suffered the same effects, but without the bumps. Two and ten weeks later, the animals were euthanized so that their skulls could be examined. Scientists have found that in rats who received a blow to the head, the skull bones at the site of the impact began to thicken. The first signs of this are already noticeable after two weeks, and after 10 weeks the effect becomes noticeable. The increase in thickness is due to the spongy bones, possibly because the body is trying to protect the brain from further impacts this way.
How effective such protection is, however, is unclear, and the authors plan to investigate how thicker bones prevent the impact stroke from penetrating.
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