When normal blood pressure is also dangerous, doctors usually evaluate a blood pressure reading based on average values. However, sharp and strong fluctuations throughout the day are a risk. Researchers have identified a small population of nerve cells in the brain that help maintain a stable pressure, but if these cells are damaged or do not work, then a sharp increase in pressure occurs, which are to blame for fatigue or dizziness. Meanwhile, such "strangers" can threaten health. How to prevent this, read the material AiF. Photo: istockPhoto Subscribe to AIF / All channels AIF / MAKS.