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Friday, August 20, 2010

Yoga protects the brain from depression

Practising yoga really does relax your mind as well as your body more than other types of exercise, a new study claims.

Researchers have found that three sessions of the exercise a week can help fight off depression as it boosts levels of a chemical in the brain which is essential for a sound and relaxed mind.

Scientists found that the levels of the amino acid GABA are much higher in those that carry out yoga than those do the equivalent of a similarly strenuous exercise such as walking.


Tuesday, August 17, 2010

Meditation really does work

Meditation really does work because it rewires parts of the brain which regulate emotions and behaviour, researchers have found.

Just 11 hours learning a meditation technique called integrative body-mind training (IBMT) produced dramatic changes in the brains of volunteers.

Scans revealed that neuron connectivity was boosted in a part of the brain important for regulating emotional behaviour and dealing with conflict.


Thursday, July 29, 2010

Time is running out - literally, says scientist

Scientists have come up with the radical suggestion that the universe's end may come not with a bang but a standstill - that time could be literally running out and could, one day, stop altogether.

The idea that time itself could cease to be in billions of years - and everything will grind to a halt - has been set out by Professor José Senovilla, Marc Mars and Raül Vera of the University of the Basque Country, Bilbao, and University of Salamanca, Spain.



13:53 Posted in Physics | Permalink | Comments (2) | Tags: time

Saturday, July 24, 2010

The Healing Effects of Forests

From: ScienceDaily (July 23, 2010)

"Many people," says Dr. Eeva Karjalainen, of the Finnish Forest Research Institute, Metla, "feel relaxed and good when they are out in nature. But not many of us know that there is also scientific evidence about the healing effects of nature."

Forests -- and other natural, green settings -- can reduce stress, improve moods, reduce anger and aggressiveness and increase overall happiness. Forest visits may also strengthen our immune system by increasing the activity and number of natural killer cells that destroy cancer cells.

Many studies show that after stressful or concentration-demanding situations, people recover faster and better in natural environments than in urban settings. Blood pressure, heart rate, muscle tension and the level of "stress hormones" all decrease faster in natural settings. Depression, anger and aggressiveness are reduced in green environments and ADHD symptoms in children reduce when they play in green settings.



Friday, July 23, 2010

Depression really does make everything look grey

Twenty years ago, William Styron, the American author of Sophie's Choice, wrote what many regard as the definitive account of severe depression in his memoir Darkness Visible.


Today researchers give scientific credence to his choice of title by demonstrating that people in the grip of despair do indeed see the world in shades of grey. Depression not only drains life of its pleasure and its purpose; it also drains the visible world of its contrast. This "greying" effect may even be a factor in causing, or maintaining, the depression, the researchers suggest.




Quantum time machine 'allows paradox-free time travel'

Quantum physicists at the Massachusetts Institute of Technology believe it is possible to create a time machine which could affect the past without creating a "grandfather paradox".

Scientists have for some years been able to 'teleport' quantum states from one place to another. Now Seth Lloyd and his MIT team say that, using the same principles and a further strange quantum effect known as 'postselection', it should be possible to do the same backwards in time. Lloyd told the Technology Review: "It is possible for particles (and, in principle, people) to tunnel from the future to the past."



20:25 Posted in Physics | Permalink | Comments (0) | Tags: time travel, quantum, physics

Monday, June 28, 2010

Scientists simulate the sound of the 'God Particle'

Scientists say they have discovered what the mysterious God particle will sound like when it is finally created at the Large Hadron Collider (LHC).

The project is designed to develop a way of listening to the LHC's experiments to make it easier for them pick out when the so-called Higgs boson particle is produced.

The Higgs boson particle is thought to give all other particles in the universe their mass

Read more: http://www.dailymail.co.uk/sciencetech/article-1289175/Th...