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.”
A recent research, published in the European Respiratory Journal, finds that sleep apnea, a common disorder that interferes with the breathing while sleeping, is connected to the changes in brain structure similar to changes seen in early dementia.
For the study, 83 participants were involved with the age from 51 to 88. They reported memory and mood problems to their doctors. None of them was diagnosed with obstructive sleep apnea (OSA) They underwent memory tests and MRI brain scans.
Having analyzed the received data, the scientists concluded that a low level of oxygen in blood during sleep was associated with the loss of thickness of the right and left temporal lobes of the brain. These brain structures play important role in memory processes and proved to be changed in dementia.
More information about Sleep Apnea and its symptoms you may find here.
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 new study from the Netherlands finds that smoking and diabetes are linked to the calcium buildup in the hippocampus, a part of the brain which is important for memory.
Within the tasks of the study, a team of scientists examined the multiplanar brain CT scans of approximately 2,000 people who attended a hospital memory clinic in the Netherlands between 2009 and 2015. The patients’ average age was 78, ranging from 45 to 96 years.
Having analyzed the received CT scans, the researchers concluded that 19% of the study participants had calcification in the hippocampus. Also, the older age, smoking, and diabetes were associated with the higher level of calcifications in the brain.
Lead study author Dr. Esther J. M. de Brouwer, from the Department of Geriatrics at the University Medical Center in Utrecht, says: “It is […] likely that smoking and diabetes are risk factors for hippocampal calcifications.”
Women are more vulnerable to strokes than men due to hormones. Nicole Weinberg, M.D., a cardiologist from Providence Saint John’s Health Center in California explains: “Higher hormone levels, particularly estrogen, compromise the integrity of blood vessels. They affect how the vessels stretch and contract, which can make them more vulnerable to arterial dissection [tears] and blood clots.”
Women taking birth control pills, illegal drugs or those who are smoking or pregnant are even at higher risk of a stroke. Stroke symptoms in younger women may differ from the stroke symptoms in older women or men. Here is the list of all stroke symptoms — those, common to all, and those that are only typical for younger women:
Your face looks really off.
Feeling clumsy and weak.
It’s hard to speak.
Dizziness and nausea.
A really strong headache.
Persistent incurable hiccups.
Sudden, drastic, unexplained changes in your personality or mental state.