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Showing posts from April, 2010


Why do we need sleep?
A lot of research and theories have been thrown up over the years. Scientists have shown numerous ways in which sleep is related to memory. Working memory was shown to be affected by sleep deprivation. Working memory is important because it keeps information active for further processing and supports higher-level cognitive functions such as decision making, reasoning, and episodic memory. As the field of sleep research is still relatively new, scientists have yet to determine exactly why people sleep. However, they do know that humans must sleep and, in fact, people can survive longer without food than without sleep. And people are not alone in this need – all mammals, reptiles and birds sleep.
Scientists have proposed the following theories on why humans require sleep:
• Sleep may be a way of recharging the brain. The brain has a chance to shut down and repair neurons and to exercise important neuronal connections that might otherwise deteriorate due to lack …


Memory has importace in every field of life not only for students to pass exams but to everyone in everyday life. Every person wants to improve his memory .we always have been in the search of food that can improve our memory.Here are some brain food that may be beneficial for us.
Brain Foods
There are certain foods that are either suspected to improve brain function or have been proven to do so.
Many of these brain foods protect your brain by releasing anti-oxidants, natural chemicals that break down harmful compounds called "oxidants" that your body produces naturally. Most of these foods also contain important vitamins and nutrients essential for health.
Brain foods include:
• Apples

                           • Avocados

• Bananas
• Blueberries
• Dark green vegetables, such as spinach
• Eggs
• Flaxseed oil
• Salmon
Because each food is a little different, it is important to eat a variety. You need a well-rounded diet of brain foods to get the most benefit to eat at …

Memory Improvement technics

It's a general situation - you meet someone new, and then moments later you've forgotten their name! Names, passwords, pin and telephone numbers... the list is endless - with so much to memorize is it really possible to improve how much you can remember?.
Everyone either he is student or a layman want to improve his memory.We always in the search of some technics or any method that can be beneficial in improving our memory.Before you study for your next exam, you might want to use a few strategies to boost your memory of important information. There are a number of tried and tested techniques for improving memory. There are some technics or tips can be useful to improve your memory.

1. Focus or concentrate your attention on the materials you are studying.
Attention is one of the major part of memory. In order to improve short memory to long term memory you need to actively read this information. Try to study in a place free of disturbance such as television, music, and other…


In our day today life everyone faces the common problem that is FORGETTING.
Causes of Forgetting
There are some subjective and objective conditions of forgetting. These we commonly call causes of forgetting. These causes hamper the processes of learning and retention.
• Length of the learning material is a factor of forgetting. The more is the time taken in learning, the quicker is the rate of forgetting. Attitude or interest of the learner is an important factor in forgetting. Prose pieces are learnt with much pains at the cost of much time. Forgetting in the case of prose materials sets in quickly.
• Under learning is another important causes of forgetting. If the lesson is half learnt, forgetting will be very quick.
• Injury or shock to the brain is another cause of forgetting. We all know about the shock of amnesia.
• Forgetting often takes place due to the influence of drugs. Narcotic drugs make the neurones ineffective. As a result drug addicts become forgetful.
• Retroacti…