Love is Chemistry

April 22nd, 2010

Could a capsule returning the spark to a marriage? Would it be possible realize the famous arrow of Cupid in an injection? What create a compressed to remove an unrequited love?

According to the journal Nature the researcher Larry Young, the National Center for Primatology of Emory University, uncovering the chemical components of love could “to develop drugs to reduce or increase our feelings toward the other”.

To study the reactions brain involved in love, Young has worked with rodents, which are a good model for human relations because “create relationships of life partner and bringing up children together.” AND has demonstrated that this behavior is easy to change chemically. In particular, if placed in a female of rat field next to a male injecting oxytocin -a hormone that is linked to social aspects and care in the brain, it will be linked soon in this male. On the contrary, reduce the normal levels of oxytocin lead to the absolute rejection of your partner regardless of how many times sexual intercourse with him. In other words, a single dose of the hormone adequate can drastically alter relations in these mammals.

With regard to human, “some experiments have already shown that a nasal injection of oxytocin increases confidence and helps to understand the emotions of others,” writes Young in Nature. And in Australia is currently investigating how to use this hormone spray as support for the traditional therapies of mature.

Moreover, recalls Young, we must take into account that love is based not on a single substance. For example, some studies have shown that differences in a gene called larger complex histo compatibility, which affects the immune system, can be related to sexual attraction.

In any case, “recent advances in biology on bonds of mature indicate that not be long before any person little scrupulous target a pharmaceutical potion of love in our drink,” predicts Young. “And if that happened, what we mind? After all, love is madness”, reflects the researcher.

Children Who Eat More Pan Suffer Less Overweight and Are Better Fed

April 17th, 2010

· Also recorded better indicators of cardiovascular risk.

In addition, the risk of deficiencies and nutritional imbalances descends from a 50 per cent to 39.5 per cent.

· Consumption of bread has not stopped falling in Spain, today consume less than half that in 1964.

It may seem a paradox, especially taking into account the fame of caloric has the pan in particular and carbohydrates in general (that the bread not puts on weight is something many years defending), but that is the main conclusion of a recent study involving 504 schoolchildren between 8 and 13 years belonging to 10 educational centers in La Coruña, Barcelona, Madrid, Sevilla and Valencia.

To carry out this study, conducted by dr. Rosa M. Ortega, Professor of nutrition at the University Complutense in Madrid, children were divided into two groups according to their daily consumption of bread (more and less than 80 grams a day), and then analyze the impact that would in all of them the consumption of two other daily rations more.

Increasing consumption of bread rises the energy from the carbohydrates and descends that comes from the fats (lipids) in the work is revealed that children who eat more bread have fewer problems of overweight (15.8 percent suffer overweight and a 13.9% obesity) while these figures increase to an average of 16.6 per cent in overweight and 20.5 per cent of obesity, in the group that consumed less bread.

The investigating team also noted that those who eat more pan recorded a lower Body Mass Index (BMI) (18.8 k/m2 compared to 19.4 kg/m2 of those who eat less), as well as a profile caloric more appropriate in their diets (percentage of calories from carbohydrates, proteins and fats) and best blood parameters indicators of cardiovascular risk (cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol) and indicators of control of glucose (glucose basal and insulin basal).

The consumption of bread also favors an intake more adequate nutrients. In the case of the fiber, the lack of which involves the emergence of pathologies like constipation, cardiovascular disease or cancer; children who eat more bread eaten 18.6 g/day, while the rest only 16.2 g/day.

With respect to other nutrients, it should be noted the increase in the contribution of niacin or Vitamin B3, 33 mg/day in which eat more bread and 30.1 mg/day in the rest; magnesium, 270.3 mg/day compared to 249.1 mg/day; or Vitamin A, 996.6 mcg/day compared to 850.5 mcg/day.

When it comes to calculate the Index of healthy diets (IHD), in the study found that 18.6 per cent of the children studied showed poor diets and a 31.7% subsistence acceptable, but not considered completely balanced, which shows that a 50.3 per cent could be at risk of deficiencies and nutritional imbalances.

Subsequently to be carried out the theoretical assumption add two rations of white bread a day with the aim to see how change the child’s diet. This increase was a significant improvement in the caloric profile of allowances, as it increases energy from the carbohydrates (reaches 47 percent compared to 44%) and descends from the lipids (40 per cent to 37 per cent).

The increase in consumption of pan allows balancing the diets of schoolchildren, which at present are characterized by excessive intake of fats and proteins and a minor contribution of carbohydrates

The child who takes more bread, takes more than the amount of vitamin B1 and iodine (important in the functioning of the nervous system), more folic acid (which helps the protection cardiovascular and improves mental function) or more zinc (important to get a better immune response).

“Specifically in relation to the folate intake media passes from 89.9 per cent to 95.6 per cent of what is recommended, for the iodine of 61.9 per cent to 64.2%; for zinc, from 75.7 per cent to 79.2%, which contributes to the nutritional situation of children change very favorably only with the increase in these 2 bread rations,” confirms the professor Ortega.

As regards the Index of Healthy Diet (IHD), reduces the number of children who have poor diets (of a 18.6 per cent to 11.5%) and subsistence acceptable (of a 31.7 per cent to 28%), with what the percentage of school children at risk for various nutritional problems low of a 50.3 per cent to 39.5 per cent and increases, in turn, the number of children that improve the quality your diet (of a 47.5 per cent to 54, 6%).

The consumption of bread has not stopped falling in Spain since 1964. In 2006 each Spanish consuming less than half of bread that in 1964. Something similar has happened with potatoes. In addition has significantly increased the consumption of fat.

How to Combat Jet Lag – When The Internal Clock Also Goes on a Trip

April 6th, 2010

* The exposure to light at certain times of day helps pace
* In addition to the behavior, the drugs also can combat jet-leg’
* At home, in the flight, and in the destination should carry out different patterns

- No matter if it is for business or pleasure, the internal clock always sync when traveling in distant countries. The time difference between the destination and origin upsets the agency and, for example, works as if it were at night when it is of day. Exposure to light or taking certain medications can help to balance the circadian rhythm. ‘The New England Journal of Medicine’ (“NEJM”) reviews the etiology and the possible treatments of omnipresent ‘jet-lag’.

Although, basically, disrupts the dream, overfly five or more slots in the direction East or West, also can alter the humor, physical capacity or cognitive and cause gastrointestinal discomfort. The disappear is a matter of time, and adaptation. However, until this happens, the traveler can feel quite uncomfortable.

The first form of combat jet-lag’ is to align ‘the’ circadian clock (which regulates body functions during the day and night) squeezing the benefits of a bright light.”sun exposure in the afternoon delayed the clock and do so in the morning what ahead,” said Robert L. Sack, author of the document and professor at the University of Science and Health of Oregon (USA).

The pattern will be different, therefore, if traveling toward the East or West. The newcomer will have to adapt ‘to the low’ in the case of a trip to Spain to US, and exposure to light in the afternoon; or the high, if you walk away from England to Asia, for example, and to seek the light in the mornings.
Light and darkness

Similarly, in certain schedules, it is essential the darkness. “It is important not to leave during the early hours of the day, after a journey toward the East, or for a few hours before sunset, if it has been toward the West,” said the work. AND adds, “this strategy is based on the theory that if a person crossed eight or more time zones, your system circadian may interpret the dawn and dusk (or the reverse)”.

In this adaptation process timezone, can also help the administration of melatonin. It is a hormone that “can be seen as a signal nightlife, with consequences on the circadian rhythm that are contrary to those of the exposure to light”.

Until now, the use of melatonin is only approved by the US Agency of the Medicine (FDA, by its acronym in spanish) as nutritional supplement. However, various tests show that its use in the ‘jet-lag’, although it is not known what dose, it could also be safe and effective.

These guidelines, qualifies as the cited expert, may be the contrary in special cases, as in the people who leave their country with the rhythms ‘changed’. It would be the case, for example, of the individuals who work at night or those who already suffering ‘jet-lag’ previously.

In addition to the melatonin, other medications could be useful against this ‘disorder of opening hours’. Is the case of the drugs hypnotics or exciting, depending on the circumstances. The main problem with this alternative has to do with the side effects (confusion, headache, nausea, vomiting…).
Other basic guidelines

* Before traveling: it is advisable begin to reset the internal clock, surpassing or delaying the bedtime. It is also essential rest long enough.
* On the flight: it should be comfortable with light clothing and, if it can, the ideal is to travel in ‘business’ or first class. Take water to remain hydrated and does not abuse the caffeine or alcohol. The latter is especially important if you are going to take a pill to sleep, which should not be combined with alcoholic beverages. Change of position and often stroll down the plane from time to time, to prevent a deep vein thrombosis (“syndrome of the tourist class’).
* The arrival: it is important to bear in mind that it is very possible that their sleep patterns are modified; that sleep more or less than normal. If you much sleep, you can resort to a help pharmacological. If you are tired during the day, caffeine in a moderate way and try sleep a nap. Adjust to t