Posted on Feb. 24, 2012, 6 a.m. in
Previously, studies have shown that friendships can protect against adjustment difficulties later in life. William M. Bukowski, from Concordia University (Canada), and colleagues have pinpointed the biological basis by which a good friend beneficially impacts a person’s physiological and psychological health. The team studied 55 boys and 48 girls, enrolled in fifth and sixth elementary school grades. The subjects kept journals on their feelings and experiences over the course of four days, while the researchers measured levels of cortisol – the hormone produced naturally by the adrenal gland in direct response to stress – in the children's saliva. The team found that feelings of self-worth, as well as the levels of cortisol, were largely dependent on the social context of a negative experience. The study authors conclude that: " When a best friend was present, there was less change in cortisol and global self-worth due to the negativity of the experience.”
Adams, Ryan E.; Santo, Jonathan Bruce; Bukowski, William M. “The presence of a best friend buffers the effects of negative experiences.” Developmental Psychology, Vol 47(6), Nov 2011, 1786-1791.
Health Headlines MORE »
The North American cranberry reduces the ability of pathogenic bacteria to adhere to cells of the human body.
Middle-aged men and women with elevated pulse pressure may be at a higher risk of having blood markers of Alzheimer's Disease later in life.
Probiotics – live bacteria that help to maintain a healthy digestive system, hold promise for the treatment of depression.
Overweight and obesity are major risk factors for heart attack and ischemic heart disease, regardless of the presence or absence of Metabolic Syndrome.
People who engage in an aerobic exercise program enjoy improved memory and increased blood flow to the brain.
International research team identifies cadherin-11, a molecule that is overproduced in a variety of cancers as well as rheumatoid arthritis.
Regular exercise and managed caloric intake, are practical approaches to maintain or improve neurological performance and cognitive skills.
Whereas 382 million people worldwide have diabetes in 2013, that number will soar to 592 million by 2035.
Punicalagins, found in the pomegranate fruit, inhibit collagen-degrading enzymes.
Rates of allergy and asthma doubled between two cycles of a US national health survey, and rates of people who experiencing both conditions also rose sharply.