Background. Vasovagal syncopes (VVS) are relatively often recorded in the population of young people. Objective. To establish the changes in the baroreflex function during the tilt test in healthy young males with the history of VVS. Design and methods. A total of 102 people aged 18-30 years were examined and divided into 4 groups, taking into account the specific features of fainting history and response to the tilt test. Subjects of the group 1 (n = 14) had a history of VVS and a positive response to the tilt test (syncope). Subjects of the group 2 (n = 14) had a history of VVS and a pattern of postural tachycardia without fainting verified during the tilt test. Subjects of the group 3 (n = 42) had a history of VVS and a negative response to the tilt test. Subjects of the group 4 (n = 32) did not have a history of VVS and showed a negative response to the tilt test. During the tilt test, we studied the dynamics of the baroreflex functional parameters (the number of baroreflex reactions (NBR), the baroreflex