Scientists find clue to how caffeine fights Alzheimer's
European researchers have shed some light on how caffeine helps fight Alzheimer’s disease: it improves tau proteins in the brain and that seems to help slow the rate of memory decline.
Tau proteins are one of the hallmarks of Alzheimer’s–they congest human brain cells. In the study, the researchers tested caffeine intake on two groups of mice: one group were bred with tau deposits similar to humans and the other group acted as a control. The group with tau received caffeine in their drinking water. The control group received no caffeine.
The mice that drank caffeine on a consistent basis did not develop spatial memory problems that the control mice did. The researchers said the chemistry of tau proteins was reduced, particularly within the hippocampus of the brain—the part responsible for memory. The results also revealed caffeine diminished pro-inflammatory and oxidative stress markers in the hippocampus.
While the researchers are hoping these findings may one day help with Alzheimer’s treatments, the next step is to test the effects of caffeine on humans.
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Sourced from: medicalnewstoday.com, Scientists discover big clue to how caffeine wards off Alzheimer’s
Published On: April 8, 2014
Procrastination and impulsivity genetically linked
If it seems as if procrastinators often make impulsive decisions it may be because procrastination and impulsivity originate from similar evolutionary origins. New research, published in Psychological Science_,_ says these traits correlate to our ability to juggle and pursue multiple goals.
Researchers at the University of Colorado Boulder studied this connection by asking 181 pairs of identical twins and 166 pairs of fraternal twins to take different surveys. These surveys asked questions about their impulsiveness, procrastination, and their ability to create and stick to goals.
The results showed that procrastination and impulsivity are inheritable traits, with procrastination most likely a byproduct of impulsivity. The researchers believe procrastination has evolved in the modern world as people have been able to focus more on long-term goals. But impulsivity causes us to be distracted from those goals and we procrastinate.
Next, the team is looking at how procrastination and impulsivity relate to high-level cognitive abilities. The researchers hope that understanding these traits can help people learn to avoid procrastination.
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Sourced from: sciencedaily.com, Procrastination and impulsivity genetically linked: Exploring the genetics of ‘I’ll do it tomorrow’
Published On: April 8, 2014