Archaeologists recently found a 2,700-year-old pot stash, so we know humans have been smoking weed for thousands of years. But it was only about 20 years ago that neuroscientists began to understand how it affects our brains. Scientists have known for a while that the active ingredient in cannabis was a chemical called delta-9-tetrahydrocannabinol, or THC for short. Ingesting or smoking THC has a wide range of effects, from the psychoactive "getting high" to the physiological relief of pain and swelling. It also acts as both a stimulant and depressant. How could one substance do all that? Meet the cannabinoid receptor In the 1980s and 90s, researchers identified cannabinoid receptors, long, ropy proteins that weave themselves into the surfaces of our cells and process THC. They also process other chemicals, many of them naturally occurring in our bodies. Once we'd discovered these receptors, we knew exactly where THC was being processed in our bodies and brains, as well a...

These days, virtually everyone owns a computer, smart-phone, or mobile device. Digital interaction is an integral part of our everyday routine. We check emails and texts, update our Facebook page, fire off a tweet or two, and then finish our morning coffee. Digital interconnectivity provides endless new opportunities to support our very human need for community and social interaction. Innovations like Facebook, with over 500 million users, and Twitter, with over 300 million users, now allow real-time interactions with an increasingly wider and more diverse group of people. Best of all, friends and family too distant for regular contact just a few years ago can now be intimately folded into our lives. We make friends, we share our experiences, we celebrate, and we commiserate – one world, a growing interactive community. For partners, spouses, and families separated for long periods of time by work or military service, the tech-connect boom is a godsend. Couples, children, and ...

Can food really be as addictive as drugs? In an impassioned lecture at Rockefeller University on Wednesday, Dr. Nora Volkow, director of the National Institute on Drug Abuse, made the case that the answer is yes and that understanding the commonalities between food and drug addictions could offer insights into all types of compulsive behavior. Volkow began by acknowledging that the idea is controversial. “This is a concept that is rejected by many people,” she said. “It has polarized the [addictions] field.” Many experts dismiss food as an addictive substance because it doesn’t lead to most people behaving like addicts — compulsively seeking food despite negative consequences. So, the reasoning goes, food can’t be as addictive as a drug like crack cocaine. What that fails to recognize, however, is that crack cocaine itself isn’t as addictive as is commonly believed. “If you look at people who take drugs, the majority are not addic...

  Eating strawberries, blueberries, blackcurrants and blackberries, which are rich in flavonoids, could reduce the risk of Parkinson's disease in men, finds a research. Men who ate the fruits along with other foods rich in flavonoids were found to be 40 percent less likely to develop the brain disease, Daily Mail reported Thursday. And those who ate berries at least once a week could cut their risk of developing the disease by a quarter compared with those who never ate them, the study by British and US experts has found. Flavonoids - also found in tea and red wine - are antioxidants which can offer protection against diseases like heart disease, some cancers and dementia. The research is the first large-scale study looking at the effect of flavonoids in protecting against Parkinson's disease. It causes tremors and muscular rigidity or stiffness, and affects all kinds of movement in the body. Xiang Gao of Harvard School of Public Health, one of the study leaders, sa...

  A ban on tobacco displays is coming into force in England - with ministers promising it will help curb the number of young people taking up smoking. The ban will apply only to large shops and supermarkets, with smaller outlets given an exemption until 2015. It means cigarettes and other products will have to be kept below the counter. Other parts of the UK are planning similar action as part of a concerted effort to drive down smoking rates. Health Secretary Andrew Lansley told the BBC he hoped the ban would prevent people from taking up smoking and also help those trying to give up. Continue reading the main story “ Start Quote I hope we can make a big difference” Andrew Lansley Health Secretary He said: "Firstly, it reduces the visibility of tobacco and smoking to young people. And, of course two-thirds of smokers started smoking before they were eighteen. "So, if we can, literally, arrive at a place where young people just don't think about smoking and they...

We put so much energy into resisting what has happened in our lives. The more resistance, the greater the pain we experience. The more resistance, the stronger the ties are to a history that no longer serves your purpose. However, when you accept the past, you are not judging whether it is right or wrong, you are simply accepting it happened. At that moment, the tethers start to disappear and you begin to free yourself from this past pain. As the process of freeing ourselves evolves, amazingly our attitude begins to change as well and we perceive these things as not nearly as important as they once appeared. We start to see these past scenarios more as potential lessons rather than the cause of continued suffering.

  The research team, headed by Kelly, studied 1,726 adults who were participating in a randomized, controlled trial of psychosocial treatments for alcohol use disorder. All the subjects were assessed at the start of the study and at 3, 6, 9, 12, and 15 months regarding their attendance at AA meetings, alcohol use, and spiritual/religious practices. The researchers found that attendance at AA meetings was associated with an increase in the participants’ spiritual practices. This increase was especially evident among people who measured low on spirituality at the beginning of the study. Another related finding was that AA attendance was linked to improved alcohol use, and this was partially mediated by increased spirituality. When it comes to rates of success or failure associated with AA, the “Alcoholics Anonymous Recovery Outcome Rates: Contemporary Myth and Misinterpretation” report released January 1, 2008, reported as of their 2007 Survey, 45 percent of AA me...