ScienceDaily: Living Well News

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• Mediterranean diet has varied effects on cognitive decline among different races, study shows
• Marijuana dependence alters the brain's response to drug paraphernalia
• Health risks posed by 'third hand' tobacco smoke
• Do women talk more than men? It's all about context
• Do daughters really cause divorce? Maybe not
• Cooperation: Preteens, teens most fickle, older people most cooperative
• Kids' 'community' knowledge from internet leaves researcher hopeful
• The power of making amends

Mediterranean diet has varied effects on cognitive decline among different races, study shows Posted: 16 Jul 2014 09:38 AM PDT "In a population of initially well-functioning older adults, we found a significant correlation between strong adherence to the Mediterranean diet and a slower rate of cognitive decline among African American, but not white, older adults. Our study is the first to show a possible race-specific association between the Mediterranean diet and cognitive decline," a researcher outlines.

Marijuana dependence alters the brain's response to drug paraphernalia Posted: 16 Jul 2014 06:08 AM PDT New research demonstrates that drug paraphernalia triggers the reward areas of the brain differently in dependent and non-dependent marijuana users. By letting users handle a marijuana pipe while in an fMRI, researchers found that areas of brain activation in the dependent users suggests a more emotional connection than in non-dependent users. Non-dependent users had greater activations in areas associated with memory and attention.

Health risks posed by 'third hand' tobacco smoke Posted: 16 Jul 2014 06:07 AM PDT The potential cancer risk in non-smokers -- particularly young children -- of tobacco smoke gases and particles deposited to surfaces and dust in the home has been demonstrated by researchers. Until now, the risks of this exposure known as 'third hand tobacco smoke' have been highly uncertain and not considered in public policy. However, a new study has estimated for the first time the potential cancer risk by age group through non-dietary ingestion and dermal exposure to third hand smoke. The results indicate potentially severe long-term consequences, particularly to children.

Do women talk more than men? It's all about context Posted: 15 Jul 2014 06:43 PM PDT A new study has been able to tease out a more accurate picture of the talkative-woman stereotype we're so familiar with -- and they found that context plays a large role. Using so-​​called "sociometers" -- wearable devices roughly the size of smart­phones that col­lect real-​​time data about the user's social interactions -- the research team was able to tease out a more accu­rate pic­ture of the stereo­type.

Do daughters really cause divorce? Maybe not Posted: 15 Jul 2014 01:59 PM PDT Couples with daughters are somewhat more likely to divorce than couples with sons. But do daughters really cause divorce, as some scholars have claimed? Maybe not. New research suggests a different potential explanation: the female survival advantage. Girls may be hardier than boys, even in the womb. And because they are more able to survive stressful pregnancies, more girl babies may be born into troubled marriages that are headed for divorce.

Cooperation: Preteens, teens most fickle, older people most cooperative Posted: 15 Jul 2014 11:22 AM PDT A new experimental study analyzed how cooperative attitudes evolve in different age ranges. Researchers found that young people between the ages of ten and sixteen demonstrate more fickle behavior when it comes to cooperating, unlike other age groups. People over the age of 66 demonstrated the most cooperative behavior.

Kids' 'community' knowledge from internet leaves researcher hopeful Posted: 15 Jul 2014 06:55 AM PDT Many parents assume the Internet leads to negative behavior in their children. But a team of researchers found kids found a sense of "community" by using the Internet in two after-school programs. By increasing at-risk children's exposure to various community-based websites, Facebook pages and other social media, one researcher said, they learn to use the Internet in a positive way.

The power of making amends Posted: 14 Jul 2014 06:36 PM PDT A new study reveals how conciliatory gestures promote human forgiveness. These findings show that peacemaking efforts such as apologies, offers of compensation and owning up to one's responsibility increase forgiveness -- and reduce anger -- by making the aggressor seem more valuable as a relationship partner and by causing the victim to feel less at risk of getting hurt again by the transgressor.

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