...individual studies describing the effects of the environment on the health of humans or their offspring through epigenetic changes should be taken with a grain of salt? Research on epigenetics is relatively difficult and comes with many limitations, such as the need for a large statistical sample, observation of multiple generations in succession, and the need to better understand individual interactions between epigenetic systems. Epigenetics is still a relatively young scientific discipline that has already yielded some success in understanding the effects of the environment on human health or disease. However, it holds great potential for the future which is waiting to be discovered. While epigenetics began with the identification of specific changes that can be used as biomarkers to detect a particular disease, in practice, this approach still encounters low sensitivity and specificity of these biomarkers in most cases. It is not an isolated occurrence and effect of DNA methylation on specific sequences, but a complicated combination of all epigenetic mechanisms. However, in terms of the current state of knowledge, it is perhaps best described by the thought, "We have enough evidence for humanity to do further and more detailed research, but we probably do not have enough results yet to say exactly how it works ." Well, from what is known today, we can conclude that it does not matter what a person is, where they live, or what they experience. There are mechanisms, although they are still poorly understood, that can transmit certain traces of the parents' lives to their offspring, perhaps even beyond. This is also the reason why, given today's knowledge of epigenetic regulations, it is more important than ever to maintain a healthy lifestyle.