[The cerebral blood flow in smokers]

Effect of smoking on cerebral blood flow was studied with the aid of rheography in 60 young smokers and 30 nonsmokers (control group). Tobacco smoking was found to results in rising the tone of cerebral arteries of large and medium calibres, the pulse organ filling being on the decrease. The tone of small arterial vessels and venous network decreases. The effect of the inhaled tobacco smoke on cerebral blood flow is particularly pronounced in prolonged and continuous users of tobacco.