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Israeli scientists have discovered for the first time an instance of viruses leaving messages for other viruses. What makes the discovery remarkable is that scientists expect such communication systems to exist among other kinds of viruses. Rotem Sorek of Weizmann Institute of Science and his research team have found the protein that viruses used to communicate: arbitrium, which is Latin for "decision." Even though viruses are the most primitive form of life, they infect and harm millions of people every year. The possibility of tapping into viral communication has many scientists excited, because it offers new ways to build drugs that could defeat viruses.

Though smartphones seem ubiquitous in daily life, they are actually so new that researchers are just beginning to understand what the devices may do to the brain. Researchers say phones and social media not only serve a primitive need for connection but can also create powerful feedback loops. "People are carrying around a portable dopamine pump, and kids have basically been carrying it around for the last 10 years," said David Greenfield, assistant clinical professor of psychiatry at the University of Connecticut School of Medicine and founder of The Center for Internet and Technology Addiction.

"Change has occurred so rapidly for our species that now we are equipped with brains that are super sensitive to threat but also super capable of planning, thinking, forecasting and looking ahead," said Ahmad Hariri, a professor of psychology and neuroscience at Duke University. "So we essentially drive ourselves nuts worrying about things because we have too much time and don't have many real threats on our survival, so fear gets expressed in these really strange, maladaptive ways." Dr. Hariri studies the amygdala, an almond-shaped structure that has been called the seat of fear (there's one in each hemisphere of the brain). But it's really the seat of anticipation. The amygdala primes you to react - your pulse quickens, your muscles tense and your pupils dilate - even before other parts of your brain can figure out if you need to be scared or not. Nowadays, our amydalas can be overactive, thanks to 24/7 awareness of disasters around the world and/or stress/instability in one's personal and professional life. Remaining in this state of wary hypervigilance can contribute to issues like social anxiety, hypochondria, post-traumatic stress disorder, insomnia and all manner of phobias. It also plays a role in racial and religious intolerance because fearful people are more inclined to cling to the familiar and denigrate the unfamiliar. If you can sense and appreciate your fear - be it of flying, illness or social rejection - as merely your amygdala's request for more information rather than a signal of impending doom, then you are on your way to calming down and engaging more conscious, logic-dominated parts of your brain. At that point, you can assess the rationality of your fear and take steps to deal with it.

Over the years, we have found that our words come from different parts of the brain. In addition the part of the brain which we use to formulate thoughts into sentences, we also use the part of the brain that deals with emotion when we swear. Researchers discovered that patients with neurodegenerative diseases like a stroke, were still able to swear. Studying patients with Tourette syndrome have also proved that swearing uses many areas of the brain. Since swearing involves the emotional part of the brain, we know that profanity is used to express intense emotions.

Regular speech is generated in the left hemisphere, in an area of the brain close to the surface. The cerebral cortex, or "gray matter," is often associated with higher thought processes such as thought and action. "It's sophisticated," says Bergen, "and comports with the idea of what it means to be human." Swearing, on the other hand, is generated much deeper in the brain, in regions that are older and more primitive in evolutionary terms, says Bergen. These regions are often found in the right hemisphere in the brain's emotional center, the limbic system."These are words that express intense emotions-surprise, frustration, anger, happiness, fear," says psychologist and linguist Timothy Jay, who began studying profanity more than 40 years ago."[Swearing] serves my need to vent, and it conveys my emotions to other people very effectively and symbolically," he says. "Where other animals like to bite and scratch each other, I can say 'f*ck you' and you get my contempt-I don't have to do it physically." Profanity serves other purposes, too. Lovers use it as part of enticing sex talk; athletes and soldiers use it to forge camaraderie; and people in positions of power use it to reaffirm their superiority. Profanity is even used as a celebratory expression, says Adams, citing "F*ck yeah!" as an example. The meaning of a profanity, like any other word, changes with time, culture and context. While swear words have been around since Greek and Roman times, and maybe even earlier, the types of things people consider offensive have changed. "People of the Middle Ages had no problems talking about sex or excrement, that was not their hang-up," Adams explains. "Their hang-up was talking about God disrespectfully...so that was what a profanity was."

The left hemisphere of the brain is responsible for emotions like happiness, sadness, and anger. The part of the brain that we use to formulate thoughts into sentences is that part that we also use to deal with emotion when we swear. Different studies done on people found with brain issues/diseases allowed researchers to understand that profanity is used to express the extreme emotions.

Emotional contagion is the phenomenon of "catching" other people's emotions and moods. According to Elaine Hatfield, a psychology professor at the University of Hawaii, humans are hard-wired "to automatically mimic and synchronize facial expressions, vocalizations, postures, and movements with those of another person and, consequently, to converge emotionally." Primitive emotional contagion is a basic building block of human interaction. It helps us coordinate and synchronize with others, empathize with them, and read their minds-all critical survival skills. When we mimic, the body gets feedback about the expressions we've taken on; we then feel what the other person is feeling. Gary Slutkin, a physician, epidemiologist, and founder and CEO of the nonprofit Cure Violence, says that emotional contagion, specifically anger and violence, springs from four mechanisms involving the brain: 1. Engagement of the cortical pathways for copying, a behavior related to mimicry. The most contagious behaviors are the most emotionally engaging, as well as the ones carried out by the people who are most relevant to you. 2. Activation of the brain's dopamine system, which works in anticipation of a reward. "Activation of that system puts you down a pathway toward what is important socially and for survival," he says. If you anticipate being rewarded for responding to someone with anger or violence, you are more likely to get on that behavioral track. 3. The brain's pain centers activate from veering off or being shut out from getting a reward. "A sense of I can't stand it lights up in the context of disapproval." 4. Serious injuries or abuse cause the limbic system and amygdala in the lower brain to become hyperreactive. "This causes you to be less in control, which accelerates violent behavior," Slutkin says. It also makes you more likely to get angry and be quick to react. "Then there's hostile attribution, another part of what happens with the limbic sy

The Irish language, like its people, has suffered. Listen to the Story. It has been used and abused by many: British colonialists, by the Catholic Church, and by Irish revolutionaries. The first two discouraged its use, associating it with poverty and primitive wildness.