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The body consists of trillions of cells. They are all tiny living beings in their own right and need to be constantly nourished. In particular, they need oxygen, which is transported to the cells by the blood. Once the necessary nutrients have reached a cell, they are pushed in through the outer wall. This requires the blood to be constantly pressurised. This is called blood pressure. It must be neither too high nor too low.
When a cell needs nutrients, it informs the body via the nervous system. The electrical signal is transmitted to the brain, where it is collected and analysed. When the right moment arrives, a signal is sent to the heart, which ensures that it beats. The blood is then sent with new nutrients to the cells where they are needed. How often and how strongly the heart beats naturally depends on how many nutrients are needed. Greater efforts consume more. In order to regulate this precisely, a central point in the body is needed, namely the brain, which sends the heart the necessary signals that end up in the so-called AV node. Without this signal, the heart would not know that it should pump and would therefore simply do nothing. The cells would then no longer receive any supply and would die.
Of course, things can go wrong in this cycle. In my case, the electrical signal sometimes does not reach the AV node. This is called an AV block. If this only happens a few times a day, everything is fine, because this is basically the case for everyone and is not a problem. If it happens many times in a row, then the heart is not beating where it should for longer. The cells are undersupplied and this can have serious consequences. It can even lead to death.
There is only one medical method to ensure that the heart always beats regularly and in line with demand: a pacemaker. The device recognises when no signal has been sent to the heart for a while or has not arrived, and then sends an electrical signal itself so that the heart is instructed to pump in the right place and not simply stop. This type of treatment requires an operation, which is one of the most common operations nowadays.
In my case, I have a 2nd degree AV block. The heart sometimes doesn't beat sufficiently and therefore doesn't supply the cells with enough blood. I notice this through various symptoms. My eyes sometimes have very poor vision and my left eye can sometimes even almost go blind. If the brain is not supplied with enough energy, I feel dizzy and have a tendency to faint. If my body is under too much strain, I feel sick and my knees go weak. And at night, when my blood pressure is already very low, I go into shock. I have nightmares and wake up in a panic and with dizziness.
Of course, my body is also stressed during sport and especially during sex. As the penis is filled with blood to get hard, the heart has to pump properly. If it doesn't, we have the same problem. That's why my body also prevents too much effort, i.e. orgasm. This is only possible once it has been ensured that all vital functions are working properly.
I think it will probably be necessary to have an operation soon so that I finally feel better again.