Ultrasound window allowed scientists to peer into the brain

In order to help people suffering from many years of heavy flows of epilepsy, it is necessary to conduct a diagnostic study of the brain. But do it without surgery is not easy. A scientist from the University of Arizona, offers his own method.

In the case of such disease patients require surgery to remove a section of tissue. To do this, set the exact position of the region of the brain, the source of a convulsive seizure.

Electroencephalography is not a good helper, because it provides a low resolution image, and the introduction of the electrodes, allowing up much more accurate maps of the brain, is always a risk of infection (and sometimes there are strange hallucinations ).

The effect is as follows: the phase and magnitude of the voltage passing through the skin, proportional to the pressure of ultrasound directed at a particular body part.

In practice, this means focusing on a small section of skull ultrasonic beam changes its physical properties. The result is a kind of "electric box" that allows you to look inward, to accurately measure the weak electric field, which normally do not go beyond the human skull.

And so there they can be caught using standard equipment such as EEG (electrodes placed on the head as a hat). Further built more accurate maps can be used to determine exactly what area you want to delete.

Reduce cholesterol

What is cholesterol? It's a good question, since many speak of him but we know little about it.

Cholesterol is a substance belonging to the group of steroids, is fat soluble and insoluble in water.
It is in our body naturally, since it is necessary for us to achieve our vital functions in an adequate form.

We find cholesterol in the brain, blood, liver, nerves and bile and is found in humans and animals. In this reason we should avoid eating foods of animal origin to successfully reduce cholesterol levels.

Our liver is one that generates 80% of total cholesterol and 20% remaining one comes from our diet. Since the liver is transported into cells via protein supposedly lipoproteins. Thus, cells use what they need and the rest remain in the blood stream, the expectation that other lipoproteins are the new liver.

Lipoproteins which bear liver tissue are those of low density (bad) cholesterol and high density lipoprotein (good cholesterol) are those who are responsible for removing excess cholesterol from the blood and tissues and newly Directions to the liver. In this way a balanced cycle continues each time everything works well.

When this equilibrium breaks cholesterol adheres to artery walls and form plaque that clogs the ductus arteriosus (arteriosclerosis). The best way to control this problem by wearing a proper diet, as a fundamental principle which has no animal fat and is rich in vegetables and fiber.