Gandirea pozitiva

De cele mai multe ori, atitudinea pozitiva a unei persoane care sufera de o afectiune grava, cancer sau boli de inima, contribuie decisiv la imbunatatirea starii de sanatate.

Studiile recente au aratat ca persoanele care trec printr-o perioada dificila, fie ca este vorba de o afectiune, un divort sau o despartire, isi pot recapata echilibrul printr-o atitudine pozitiva.

Cercetatorii Universitatii Ben-Gurion din Israel au aratat insa ca studiile realizate in acest sens nu sunt complete, informeaza livescience.com. In sprijinul acestei afirmatii, ei au dat exemplul femeilor care, in urma unei perioade stresante, sunt predispuse riscului aparitiei cancerului. O atitudine pozitiva a acestor persoane nu a aratat imbunatatiri considerabile ale starii lor de sanatate.

Astfel, cercetatorii israelieni vor sa determine daca atitudinea pozitiva este un leac real sau nu. "Principalul mesaj al studiilor realizate de noi este ca femeile care sufera de o afectiune grava trebuie sa aiba parte de un tratament medical adecvat.

Este adevarat insa ca o atitudine pozitiva asigura in fond emotional stabil, dar acesta are doar un rol preventiv si nu unul decisiv", a spus Ronit Peled.

El a avertizat ca riscul acestor recomandari este ca pacientul sa se abata de la tratamentul oferit de medic, in speranta ca doar fondul afectiv asigura imbunatatirea starii de sanatate.

Pe de alta parte, studiile cercetatorilor israelieni au aratat ca persoanele care au suferit de un atac de inima sunt predispuse aparitiei celui de-al doilea. Dar riscul scade considerabil in cazul persoanelor care au o atitudine pozitiva si un ritm de viata linistit.

Amintiri de la o alta mare

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sau Nu munci mai mult decat trebuie

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totul la mine e ca un torent linistit

iti vand iluzii

iti vand un gand

cartea gandurilor mele

Why smokers feel good

by livescience staff

Smokers enjoy their habit because it stimulates the flow of "feel good" chemicals in the brain, according to a new study involving just a handful of test subjects.

The system of the brain affected is the same one that is stimulated by heroin and morphine.

The study is the first to show smoking affects the brain's natural system of chemicals called endogenous opioids, which also help quell painful sensations and heightening positive emotions, the researchers said in a statement today. The system includes the release of endorphins that produce the oft-sought "runner's high."

Participants did not smoke for 12 hours before the test. Then they smoked two cigarettes which had the nicotine removed from them, followed later by two cigarettes with nicotine.

Their brains were monitored the whole time, and they were also asked how they felt at each step.

"It appears that smokers have an altered opioid flow all the time, when compared with non-smokers, and that smoking a cigarette further alters that flow by 20 to 30 percent in regions of the brain important to emotions and craving," said David Scott, a graduate student in the University of Michigan Neuroscience Program. "This change in flow as seen on a brain scan correlated with changes in how the smokers themselves reported feeling before and after smoking."


The orange dots on these brain scans show the areas where the biggest changes in opioid activity took place after smokers began smoking a regular cigarette. On the left is the cingulate, where activity increased 20 percent. On the right is the amygdala, where activity decreased by more than 20 percent.
Credit: University of Michigan

The study involved just six smokers, however, all males in their 20s who said they normally puffed 14 cigarettes a day. Scott and his colleagues say that despite the small number of participants, they were surprised at the large effect on opioid levels. The research will be expanded to include more participants.

Further study, the scientists suggest, might reveal why the habit is so hard to kick.

"The interaction of tobacco, and especially nicotine, with brain chemistry is a fascinating area that we're just beginning to understand, especially when it comes to correlating neurochemistry with behavior," said study leader Jon-Kar Zubieta, a psychiatrist and neuroscientist at the university. "Just as with the 'hard' drugs of abuse, such as heroin and cocaine, the phenomena of pleasure, addiction, increased tolerance and craving from tobacco are firmly rooted in neurochemistry."

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1. Scriptura e totuna cu biblia?
2. Iisus a fost om, da!? Atunci de ce nu zambeste niciodata? (in biblie se mentioneaza o singura data ca iisus a ras, cand a vazut ce inteleg apostolii din invataturile lui.)
3. De unde a aparut nevasta lui Cain, daca vechiul testament zice
ca era din alt neam?
4.

Pierderi de 100 miliarde de dolari prin atacuri cibernetice

Kaspersky Lab atentioneaza in privinta cresterii fara precedent a crimei cibernetice, pierderile estimate la nivel mondial depasind 100 de miliarde de dolari pentru 2007.

In acest context, exista un interes crescut atat pentru intelegerea fenomenului cat si pentru solutiile de securitate ce ofera protectie directa impotriva atacurilor online.

"Din punct de vedere al atacurilor informatice, Romania se afla inca intr-o faza emergenta, majoritatea atacurilor pe care le-am observat pana acum au fost bazate pe inginerie sociala. Nu exista inca softuri care sa atace in mod direct sisteme romanesti de banking online.

Din pacate insa, asa cum s-a intamplat si in alte tari, aparitia acestora este inevitabila si ne aflam in momentul potrivit pentru a lua masurile necesare prevenirii unor incidente majore", a declarat directorul departamentului cercetare - dezvoltare Kaspersky Lab Romania, Costin Raiu.

Chiar daca atacurile informatice indreptate asupra institutiilor bancare din Romania s-au bazat pe metode "vechi" de tip phishing, pierderile datorate acestor atacuri au fost destul de serioase, fapt intens mediatizat in ultimele luni.

"Salutam initiativa Institutului Bancar Roman pentru aducerea in atentia mediului bancar a problematicii atacurilor cibernetice moderne si speram ca si alte institutii sa-i urmeze exemplul.

Cat priveste producatorii de software de securitate, Kaspersky Lab a intensificat lupta impotriva crimei cibernetice atat prin educarea publicului larg cat si prin noile tehnologii pe care le dezvolta - cum ar fi cele introduse in Kaspersky Internet Security 2009", a declarat directorul general al Kaspersky Lab Romania, Teodor Cimpoesu.

Infiintata in 1997, compania Kaspersky Lab este un furnizor international de software de securitate a informatiilor. Cu sediul central la Moscova, Rusia, Kaspersky Lab are reprezentante regionale in Marea Britanie, Franta, Germania, Olanda, Polonia, Japonia, China, Coreea, Italia, Romania si SUA.