Oleg Olexandrovych Krishtal was born in Kyiv on July 5, 1945, in the family of entomologists. From the age of four, the world-famous in future biophysicist and neurophysiologist spent in expeditions and scientific institutions with his parents, watching through the work of scientists, he learned at the age of five read and since then read everything that came on the eyes, including encyclopedias. In the school he was one of the best students and was graduated as a medalist. Already at that time, he was confident that future discoveries in biology will be linked to the development physics. So after graduating from school, he chose Faculty of Physics, Kyiv University named after T.G. Shevchenko, who graduated in 1968, after graduating in physics with a degree in physics "Molecular physics".