How Smells Affect the Brain
Researchers studying the most ancient yet least understood of the five senses—smell—have discovered a previously unknown step in how odors are detected and processed by the brain.
The brain is constantly bombarded by smells, so how does it filter and categorize the scents that define our days? "Scientists have discovered a dialogue between the bulb and the cortex conducted by rapidly firing nerve cells. 'It was originally thought that the olfactory bulb filtered and the olfactory cortex made decisions on whether something is, for example, edible,' said lead researcher Diego Restrepo, University of Colorado neuroscience professor. 'Our study says it's not quite like that. You process information on reward in the olfactory bulb, send it to the cortex and there is a dialogue between the two. Then the brain will act.'"
Both schizophrenics and people with a common personality type share similar brain patterns.
- A new study shows that people with a common personality type share brain activity with patients diagnosed with schizophrenia.
- The study gives insight into how the brain activity associated with mental illnesses relates to brain activity in healthy individuals.
- This finding not only improves our understanding of how the brain works but may one day be applied to treatments.
It's a development that could one day lead to much better treatments for osteoporosis, joint damage, and bone fractures.
- Scientists have isolated skeletal stem cells in adult and fetal bones for the first time.
- These cells could one day help treat damaged bone and cartilage.
- The team was able to grow skeletal stem cells from cells found within liposuctioned fat.
Gut bacteria play an important role in how you feel and think and how well your body fights off disease. New research shows that exercise can give your gut bacteria a boost.
- Two studies from the University of Illinois show that gut bacteria can be changed by exercise alone.
- Our understanding of how gut bacteria impacts our overall health is an emerging field, and this research sheds light on the many different ways exercise affects your body.
- Exercising to improve your gut bacteria will prevent diseases and encourage brain health.
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