Inclusion Criteria:  Children with seizures, confirmed by EEG and no morphological damage to the brain, confirmed by MRI of the brain; The age of the patients is from 0 to 5 years; Persons of Kazakh nationality, whose paternal and maternal grandparents are Kazakhs; Children are parents or legal guardians who have given written informed consent.  Exclusion Criteria:  Children over 5 years old; Children whose parents, according to the researcher, are mentally or legally incapacitated, which prevents obtaining informed consent; Children with seizures with brain damage that cause epilepsy; Children of a non-Kazakh ethnic group.