Smoking erases memory

Smoking harms to memory — both long-term, and short-term. To such conclusion researchers from five British universities have come. Scientists have interrogated more than 700 persons with the request to estimate the memory. Interrogation was spent among chain smokers — more than 15 cigarettes in a week, smoking — to 4 cigarettes in a week and non-smoking.
To participants of research asked questions on how often they forget where have put any things, whether recollect in time to send to friends and relatives of a card etc.
As a result it was found out that at the typical chain smoker of the problems connected with memory on 22 % more than at the non-smoking. An indicator smoking — 12 %. Scientists say that smoking worsens memory, however cannot explain yet, why.