Lyuminoterapiya - is the impact a wide range of artificial light that mimics natural sunlight. Its main purpose - to fight against disorders caused by a violation of the rhythm of the internal biological clock, such as seasonal depression.

Lyuminoterapiya belongs to a large family of phototherapy, which uses multiple light sources with different spectrum, color, with a laser, sometimes combining it with a photosensitizer to cure different types of diseases such as skin diseases.

Against seasonal depression

The main objective of lyuminoterapii stems from the most well-studied of its quality - the ability to withstand seasonal depression Depression - a little more than a bad mood . This syndrome manifests itself with the approach of winter, to the extent that it reduces the light day, which negatively affect the human biological rhythms. The origin of this syndrome is unknown. Lyuminoterapiya - a medically approved practices that deal with seasonal depression.

In the Nordic countries of three to six percent of the people suffer from seasonal depression. They note the lack of energy, general weakness, depressed mood, chronic fatigue Chronic fatigue - if life is not a pleasant experience , Decreased libido, increased sleep needs, as well as bouts of bulimia, or simply increased appetite, for the most part it is manifested in cravings for foods high in carbohydrates and sugar. In Canada, for example, three percent of the population suffer from seasonal depression, whereas eighteen point at the winter blues, which is characterized by similar symptoms, but less pronounced and disturbing.

Lyuminoterapiyu used to beat and other symptoms that may be associated with the violation of the biological rhythm. Among them are sleep disorder, premenstrual syndrome, problems related to the disruption of biological rhythms due to jet lag or night work. It can also be effective in the case of postpartum depression or depression, characteristic for older people.

Biological rhythms - a powerful instrument of control

Light plays a major role in the regulation of circadian rhythms, which are distributed over the period in twenty-four hours (sleep-wake cycle, change in body temperature, hormone levels, appetite, and others). These rhythms are called endogenous, controlled by our internal biological clock. But some of them may not be dependent on the time - are influenced by external environmental indicators with which they are synchronized, such as, for example, sunlight. Thus, it is a constant play of light regulation of our biological clock.

If rhythms subordinate biological clock no longer coincide with the rhythms of day and night, we feel discomfort. The most striking example of this - the change of time zone, when a man in a new environment feel drowsy during the day, because it dictates his biorhythm, that actually now night. And being associated with our internal rhythms, the body can produce the sleep hormone - melatonin - in the afternoon, not at night. In some cases, you can rearrange the biological clock by means of exposure to light at a certain point, to slow down or speed up the progress of their biological clocks. To do this, sometimes recommend taking melatonin.

When light enters the eye, it is transformed into electrical signals sent to the brain, which in turn act on neurotransmitters. One of them - serotonin, which is often called the hormone of happiness, affects mood, besides managing the production of melatonin, responsible for the alternation of periods of sleep Dreams: how to understand our dreams   and wakefulness. Some scientific studies indicate that the metabolism of melatonin in people suffering from seasonal depression Seasonal depression - antidepressants do without , Broken. During the day these people have observed abnormally high levels of melatonin, despite the fact that natural sunlight is to prevent its generation.

Scientists have found that the fat in different areas of the body grows differently. Despite the widespread belief that the number of fat cells in adults remains constant, it turned out that at a set weight number of fat cells in the lower part of the body increases. Weight gain in the upper part of the body leads to the fact that fat cells start to grow in size.

The findings are a breakthrough in understanding how our bodies produce fat. The study involved 28 adult subjects - 15 men and 13 women with no health problems, with a normal weight. The number and size of fat cells were determined using adipose tissue biopsy prior to the study, and once - eight weeks active overeating.

The test diet consisted of large candy bars, milkshakes and other high-calorie drinks. During the study, they gained, on average, 2.5 kg of fat in the upper body, and 1.5 - in the bottom.

For a long time it was believed that after a certain age the number of fat cells in the body remains the same. But biopsies showed that the buildup of fatty tissue in the abdominal region is due to the fact that the fat cells - each individually - increase in size. In the lower part of the body, on the contrary, significantly increases the number of fat cells. Moreover, conducting the study, researchers found that the increase in body fat in the abdominal area is one of the factors that increase the risk of developing metabolic syndrome. It, in turn, can cause the development of heart disease Heart disease and heart attacks: that every woman should know , Stroke Stroke - a serious brain injury   and type II diabetes. It is estimated that the world lives a few hundred million people with the metabolic syndrome Metabolic Syndrome X - drugs do not exist .

The researchers also noted that the fat in the lower body is much less dangerous to health than fat in the abdominal area. To explain why the fat in some areas is less harmful than others, and to understand what exactly the factors of fat storage is dependent on various parts of the body, will be carried out more research.

Fat on the body zones

A certain amount of adipose tissue is on all areas of the human body. This tissue consists primarily of adipocytes, whose task is to keep the energy entering the food chain, in the form of fat. Features of fat distribution in different people may have significant differences, but the types of fat tissue there are only two:

• Visceral or internal fat - is located around the internal organs;
• Subcutaneous fat is, as the name suggests, under the skin, and is 80% of the total fat present in the body.

The distribution of fat pasture has a gender difference. Women have more total fat usually deposited on the buttocks and thighs, whereby the body silhouette acquires similarity with a pear. In males, most of the fat accumulated in the abdomen, and the result is a figure such as "apple". It should be noted that it is - the typical fat distribution patterns, but among both sexes can occur as "apple" and "pear".

The distribution of body fat