Norwegian scientists have proved that in people with diseased teeth often have problems with memory.
For 20 years researchers have been observing a group of volunteers. The obtained data were obvious: people often experiencing tooth pain, worse than memorized information in General, were more irritable, aggressive and impulsive.
The human nervous system has a very complex structure. Still, modern medicine knows very little about the functioning of the brain, connections between parts of the nervous system. Apparently, pain is able to affect the General condition.
Interestingly, many people after a tooth extraction I feel sick and confused. A survey of volunteers showed that their brain negative pulses.
Note, in another study it was proved that the presence of caries in several times increases the risk of catching one of the infections.