Eating more oily fish like sardines, salmon and yellowtail could help teenage boys feel less blue, suggests a new Japanese study.

The same does not appear to hold for teen girls, however.

Omega-3 fatty acids, including EPA and DHA, are found predominantly in oily fish. Because these nutrients are thought to play a role in brain function, many researchers have wondered whether increased consumption could lower the risk of depression. But studies of such an association among adults have yielded inconclusive results.

Until now, investigators had yet to look for the potential link in youth, a population also prone to the debilitating problem. So Kentaro Murakami of the University of Tokyo and colleagues analyzed the diets and rates of depression in more than 6,500 Japanese junior high school students between the ages of 12 and 15.

Overall, 23 percent of the boys and 31 percent of the girls suffered from symptoms of depression, including feelings of worthlessness, hopelessness and sleep disturbances, they report in the journal Pediatrics.

Based on questionnaires of food intake, and adjusting for factors including age and parents' education level, the investigators found that boys who ate the most fish -- the top fifth based on total consumption -- had a 27 percent lower odds of being depressed compared to those ranked in the bottom fifth.

Similar differences were seen when looking specifically at the EPA and DHA content of the fish consumed.

Meanwhile, no effect of fish oil on depression was seen among the girls.

The investigators admit that the differing effect of fish oil between boys and girls is difficult to explain, although they point to a few possibilities such as a stronger genetic role for depression in women compared to men.

They also caution that their findings do not provide enough evidence to determine if fish oil actually lowers the risk of depression. It might be, for example, that those who are depressed eat less fish.

Although more research is needed to confirm a cause-and-effect link, the researchers conclude that boosting the intake of fish, EPA and DHA "may be an important strategy for the prevention of depression."

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Media speculates

same temperament

observations relating to the 2010 Expo

Lonely distance
Now in the past, no matter network or reality, a variety of every attitude, burst forth and return to bursting forth, declining to return declining, in a word, once with suitable posture and can say those time again most. Unable to bear lonely person need, go out, seek fun or temperament and interest, bear live in may not need to purify soul among the mountains and rivers, separate generation peace and quiet to can abandon all this mortal world affair equally, just the transformation of time, sincere to own share in it is dull that the ones that were really tested are. One old affair, chat one, if can't easily.
As for beauty of life, conceal when being trifling always. That was pursued limitlessly and can't know with what has been feared dully, feared the death, feared everything should be a kind of instinct. If really let very little romance and courage will totally run off with time, the arrival that by the time then carved, but ignorant and sorry unavoidably.
Close, will also be lonely too. The essential interval between two people, change it with relatively independent respect. The existence of the difference can let appeal be increased severely, is just used to trussing up and occupying, one party is mediocre, and the fight unwilling to be mediocre of another party, add the loneliness not to the limit in awareness.
The man's communication treats with courtesy and also becomes a part of life, has forcibly occupied the common space originally belonging to the woman virtually. And the hateful,ones that appreciate or hate can't help if changing, evolve. Make great efforts, try, pacify oneself can be regarded as not substantial already, otherwise certainly will unable to break away from in common customs thing and interpersonal environment, inherent life is more reliable than external life after all. The helplessness that nearly burdened with at the same time, dower the two people same the innocent and true too. Does the past explain, how will the future accept?
Mourning in silence while pondering is noble, it is very difficult to replace through the way that another attitude.
The simplest enjoyment, enjoying lonelily and quietly. Coercing oneself to be used to while enjoying and stand some to treat coldly too. Inanition appear, think moment that need often, needn't with miss old times or old friends, come, pack, rescue field, do not just know how to be nostalgic to let the heart be exhausted. It is lonely to get up in the mind disperse, the melody in one's ear will be sad too, all a house of description that can meet will cover with one wisp sad and drearily. Offer sight newspaper come to deliver with scorning hiding, figure can admitted, worried quietly fatherless purpose attacks by the dense one.
Perhaps the existence loved, become weak to will let lonelily. It is meaningful to comprehend more one, understand the change of destiny, have a sentimental attachment for or rely on, cause and experience the happiness and agony in seeking. The ones that appreciated lonelily and stayed alone are good, already can be regarded as the pursuit of advanced studies of a kind of return. Being lonely because of separating, people meet because of being lonely too. One cater to, let home and source become inadvisable, true because one lonely recruiting, having pity on, while seeing paying attention to lonelily Islamically?
Loss when being mediocre trifling, good fortune and unfortunate experience and imagination compromise and make a concession unconsciously. Intension of heart, let buoyant loneliness invade according to air that stay alone like the dust wallow in and not vast and hazy. If silence can penetrate and can see the interval that disappear, listen attentively to, wait, imperative. You say real companion no matter ends of the earth cut off bright world or perfect one in the heart, no one can seize the happiness.
The ones that are cherishing depth of having are sad and pityful, the eyes are always full of you, talk about lonelily being really can be regarded as a luxurious thing.
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