The frequency spectrum of cerebral artery s 1 is partially fused with s2 peak.

This is an abuse check, and you take it seriously.

Then computer fortune telling is also high-tech in your eyes.

In fact, if you take the carotid wave as an example, it is composed of a percussion wave, a ebb wave and a heavy flapping wave.

There are three waves when we do TCD: S 1, S2, D.

In young people, S 1 is significantly higher than S2 because of its good vascular elasticity, while in the elderly, S 1 may be lower than S2, or even partially fused with S 1S2. This means that there may be a slight problem with blood vessel elasticity.

But this thing is actually not very reliable. The old Chinese doctor feels the pulse. In fact, the old Chinese doctor looks at the pulse condition by the feeling of the peak and valley of the pulse condition in his hand, but you may not have the skill of the old Chinese doctor you see, or you may be wrong. Sometimes it's good to feel your pulse. One of them may be early cancer or something. I don't know.

There are not as many people who see Chinese medicine now as before, but with such a thing, ultrasound technology can fool a lot of people.