A new study from the Stevens School of Business in New Jersey, USA, finds that even coffee scent can sharpen the brain under certain conditions.
In the study, 114 students were involved. The participants were divided into two group and both had to answer mathematical questions. One group has been exposed to a coffee smell during the study. The scent was free from caffeine and other stimulants.
The researchers also executed a follow-up survey. They asked questions of 208 individuals not involved in the first test and found that a coffee scent was associated with being more alert and energetic, compared with other scents such as flowers, or with no scent.
Lead researchers of the study Adriana Madzhrov says: “Olfaction is one of our most powerful senses. Employers, architects, building developers, retail space managers and others, can use subtle scents to help shape employees’ or occupants’ experience with their environment.”
According to the findings of a new study from Queen’s University Belfast, narcissistic teens may show better results at school.
For the study, a lead researcher Kostas Papageorgiou and his colleagues recruited 340 teenage students from different high schools in Milan, Italy. Having assessed the received data, the scientists concluded that teens with higher levels of subclinical narcissism tend to be more mentally tough what leads to better performance at school.
Lead researchers Kostas Papageorgiou, a lecturer in developmental psychopathology at Queen’s University Belfast in the United Kingdom, says: “People who score high on subclinical narcissism may be at an advantage because their heightened sense of self-worth may mean they are motivated, assertive, and successful in certain contexts.”
A recent research from the National Institutes of Health, US, finds that regular running grows brain connections and therefore may boost cognitive health.
For the study, a team of researchers divided mice into two groups, having a sedentary group and an active group. They routinely analyzed brain tissue of the active group and the sedentary group. Having analyzed the received data, the scientists concluded that brain cells produced under running conditions were not only quantitatively but also qualitatively different.
Experts believe that the findings of this study should be a red flag for those who don’t like going to a gym, as while they may wait until the scales start to creep up, they should consider the silent benefits of a workout.
A new study, published in the journal Neuro Toxicology, finds that children exposed to air manganese may have lower IQ scores.
The study was led by Dr. Erin Haynes, an associate professor in the Department of Environmental Health at the University of Cincinnati College of Medicine in Ohio. A team of researchers analyzed blood and hair samples of 106 children in East Liverpool, Ohio, aged between 7 and 9 between March 2013 and June 2014.
The analysis has shown that hair manganese levels correlated negatively with full-scale IQ scores, as well as with processing speed and working memory.
Dr. Haynes says: “Children may be particularly susceptible to the neurotoxic effects of ambient [manganese] exposure, as their brains are undergoing a dynamic process of growth and development.”
Two new independent studies conducted in mice suggest that ketogenic diet, also known as “keto diet”, may improve the memory of old subjects and prolong lifespan.
One study was led by Drs. Eric Verdin and John Newman from the Buck Institute for Research on Aging in Novato, USA. Another study was led by Dr. John Ramsey from the University of California, Davis School of Veterinary Medicine.
Both studies checked the effects of four diet types such as ketogenic, low carbohydrate, high fat, and control diet in mice. A team of scientists from the Buck Institute found that a keto diet prevent obesity, reduced mid-life mortality, and prevented memory loss in mice.
Dr. John Ramsey says: “We expected some differences [in mice fed the keto diet], but I was impressed by the magnitude we observed – a 13% increase in median life span for the mice on a high-fat versus high-carb diet. In humans, that would be 7 to 10 years. But equally important, those mice retained quality of health in later life.”