IBM Computer, Laptops and Servers

But what happens when a storm, an accident, or a chainsaw-wielding hoodlum knocks out the power lines You lose connections, so you lose power -- maybe to a particular neighborhood or maybe to a large segment of the city, depending on which ones got fried. Same goes for your brain. If something knocks out those neural connections, then small or large parts of your brain can experience a blackout, and you freak because you can t remember that you left the car keys on the back of the toilet. laptop battery

Certainly, many things can cause malfunctions in your neurological grid. Some are acute and immediate, like a concussion arising from a brain bruise. Others are more chronic, as in the case of a genetic malfunction that can cause your power lines to be rickety so they easily fritz out. These are the ones that we re mainly going to address here. thinkpad

Your Memory: Don t Fuggedaboudit microsoft

Part of our job as doctors is to tell you things straight up, because when we don t tell the truth, people get hurt. No sugarcoating. No BS (that really stands for no bad science). No Win One for the Gipper speeches. When it comes to your brain, here s a fact that s harsher than a Buffalo winter: The research shows that, eventually, everyone in America will either get Alzheimer s or care for someone who has it. laptop computers

In some way or another, we re all going to be affected by serious change-your-life memory problems. But the Gipper side of that statistic is this: Memory disorders aren t as uncontrollable as they seem, and the way to attack potential brain problems is by using your brain to understand them. For starters, here are some things you should know about your noggin: laptop computer

• We actually experience a mental decline a lot earlier than we realize. Memory loss starts at age sixteen and is relatively common by forty. One way you can see this is through research done on video game players. People start losing their hand-eye coordination and the ability to perform exceptionally well on video games after the age of twenty-five. The fascinating part of this research isn t that you ll rarely beat your kid in Mario Kart: Double Dash; it s that even if your brain knows what to do when presented with an animated hairpin turn at 135 mph, your brain can t fire those messages fast enough to your trigger-happy thumbs. There s a natural slowing of the connection -- the power line -- between your brain and your body. desktop computer

• Men and women not only differ when it comes to movie tastes and erogenous zones, but also differ when it comes to mental decline. Men usually lose their ability to solve complex problems as they age, while women often lose their ability to process information quickly. That split shows us a couple of things. One, that there s certainly a strong genetic component to memory loss. And, two, that there are specific actions you should be taking to combat that genetic disposition. While there are some places where you re naturally going to decline because of your sex, there are other areas where you re going to have an advantage. That means your job isn t only to try to rebuild the area that s breaking down but to preserve the areas that excel. But across the board, both genders lose competency in the areas in which they are weak to begin with. So women lose spatial cognition, and men suffer verbal losses. Though it s certainly not true for everyone, it may give you clues as to what areas of your brain to concentrate on as you age -- or it may help you play to your strengths. (Those with poor memory recall can use organizational skills to compensate, for example.) notebooks

• You don t have to have an elite brain to know that your three-pound organ has more power than a rocket booster. It controls everything from your emotions to your decision making, and it gives you the ability to understand why the baseball in Figure 11.1 on page 220 is pretty darn funny. But when we discuss memory loss, we re essentially focusing on three specific brain functions: sensory information (your ability to determine what information is important), short-term memory loss (quick, what s the title of this chapter ), and long-term memory loss (that s your bank of recipes, trivia, names, and every piece of information you ve known, read, and stored during your life). lenovo

Whether you ve seen it on the news, on TV shows, or within your own family, you know how dementia looks from the outside: People forget faces, names, where they live, and information that seems -- to the rest of the world -- so easy to remember. The most frequently seen problem: getting lost on a walk home. To really control your own genetic destiny, you need to take a look at what memory loss looks like on the inside. For the record, age-related memory loss is classified in several ways. Conditions such as Alzheimer s, dementia, and mild cognitive impairment are all technically different. For our purposes, we re tackling them all together as age-related memory problems because of the similarities in how they change people s lives. hard drive

Your Brain: Mind and Matter travelstar

Before we crack some skulls and dive inside the brain, let s quickly look at what memory really is: Essentially, it s the process of learning information, storing it, and then having the ability to recall it when you need it -- whether to solve problems, tell stories, or save yourself on the witness stand. gateway

Learning begins with those power connections in your brain: neurons firing messages to one another. Your ability to process information is determined by the junctions between those neurons, called the synapses. The ability of brain cells to speak to one another is strengthened or weakened as you use them. We ll spare you all the biological miracles that take place between your ears, but essentially, the more you use those synapses, the stronger they get and the more they proliferate. That s why you may have strong neural pathways for your family history or weak ones for eighties music trivia. That also gives you a little insight into how you remember things. If something s exciting to you, then you learn it faster -- and train those synapses to make strong connections. But if the information seems more boring than the sexual habits of an earthworm, you can still learn and build those connections with repeated use. laptop parts

Problems arise when synapses lie dormant: The less you use certain connections, the greater chance they have of falling into disrepair (like losing fluency in a foreign language if you don t use it for a long time). Technically, we actually learn by weakening underutilized synapses and repairing and strengthening the synapses we commonly use. So if you cook a lot and enjoy it, you ll eventually know the recipes by heart -- and learn them faster because it s enjoyable. You build a large connecting wire, which allows for the faster flow of information. By contrast, lesser-used pathways fall into disrepair, so you lose or disable those connections. If you haven t exercised your 1970s TV trivia synapse in a long time, then you re not going to remember the name of the kid who played Bobby Brady on The Brady Bunch (ten points if you said Mike Lookinland before we did). software

To keep your memory functioning at optimal power, you ll need to focus on hard drives

three aspects of your biology. electronics

Your Brain. Let s peel back your scalp and look through a peephole in your head. From the toupee s-eye view, you can see that your brain has 100 billion nerve cells, and each cell receives one hundred messages per second. Yup. In the time it takes you to read this sentence, your brain cells have been doing more processing than the IRS s computer server. canon

Your neurons -- the cells that transmit information -- look like mops with shaggy strings that reach out to one another, while the handles of the mops act like cables that carry the information. These neurons talk with one another with the frequency of eighth-grade girls at a slumber party; a lot of information is exchanged very quickly. desktop pc

The hippocampus, which is shaped a little like a seahorse and is buried deep inside your brain (see Figure 1.1), is the main driver of memory. (The other two memory-related areas of the brain are the prefrontal cortex, which controls the executive function of your brain, and the cerebellum, which controls balance.) Your hippocampus processes information before it is stored. It works best when you re either emotionally interested in the material or alert when you re learning about it. That s one reason why coffee may aid memory; it seems to increase your alertness the first time you learn something, which increases the chance you ll deposit it in your long-term memory bank. desktop computers

But for the purposes of aging, we re mostly concerned about what happens to the power lines within your brain. So flip on your hippocampus (or grab a cup of coffee) and remember this: There are protein fragments in your brain that sound like the name of a Star Wars droid -- beta-amyloid -- and they re responsible for gunking up your power lines like overgrown vegetation or fallen branches. They re likely responsible for causing Alzheimer s. The primary defect in Alzheimer s affects the input and output power lines of the hippocampus. Memory starts to fade. (The other physiological sign of Alzheimer s is the buildup of what are called neurofibrillary tangles. They re insoluble twisted fibers that build up inside neurons, like power lines getting crossed up and sending energy to the wrong location. These tangles influence intelligence.) Now, a downed branch here and there won t do much to disrupt the flow of energy through your entire city, but what happens when a lot of branches or shrubs or trees fall on the same part of the grid You re out of commission. think pad

In general, genes control how much beta-amyloid you have. Some branches may be knocking out those notes from your course in eighteenth-century Roman history, while others may be causing you to forget to pick up the very thing that you went to the supermarket for in the first place. But your genes don t have complete control. You can alter the amount of gunk you have gooping up and weighing down your power lines by altering the expression of one of your genes: the Apo E gene, to be exact. Apo E protein acts like the power company crew that removes the branches and sap from the power lines after the storm. It sweeps through and removes the beta-amyloid so that your synapses can keep functioning and you don t lose the ability to remember how many career touchdown passes Dan Marino threw (420), or what year Diane Keaton won an Oscar for best actress (1977). Whenever we create new synapses to help our brain improve itself, some of this beta-amyloid remains behind, and the Apo E workers clear the gunk to ensure a clean connection. repair

One group in the union, however, local Apo E4, sabotages the effort to restore power and even gunks up the power lines further (see Figure 1.2). Research shows that an elevated level of the E4 protein is correlated with a higher incidence of Alzheimer s. Fortunately, there are things you can do to turn down the activity of the E4 gene and allow the rest of the Apo E team to clear your power lines. Eating turmeric, which is found in Indian foods, seems to reduce expression of the E4 gene (India, by the way, has a relatively low incidence of Alzheimer s). Exercise has a similar effect. data recovery

Your Blood Supply: While there s a strong genetic component to memory problems, we d be remiss if we didn t address the arterial component of an aging brain. A lack of healthy blood flow to the brain is one of the other main causes of forgetfulness. Each side of the brain has a separate blood supply that looks like several large trees during winter. Between the twigs at the tips of the major branches are areas of brain that are dependent on blood from each of the surrounding trees. The area farthest from two blood-supply lines is the watershed area where we tend to have ministrokes when the branches of surrounding trees are pruned by atherosclerosis or the tree trunks themselves wither from poor maintenance (see Figure 1.3). Cholesterol-lowering statin drugs may help maintain memory by preserving tree architecture, while also reducing inflammation that ages the brain cells directly (more on arterial health in the next chapter). cisco

Your Neurochemicals: Nerve cells communicate with one another via neurotransmitters, chemicals that ferry information from neuron to neuron across the synapses between them. The most common neurotransmitter is called acetylcholine. When levels of this chemical fall, especially in the hippocampus (the part of the brain that controls our memory), we develop cognitive impairment. Many of the treatments for Alzheimer s are aimed at increasing the amount of acetylcholine in the brain. keyboard

The other chemical that plays a significant role in memory is called brain-derived neurotrophic factor (BDNF, or just neurotrophins if you prefer), which works like Miracle-Gro for your brain. During infancy, BDNF helps develop nerves that help us learn, but as we get older, things like inflammation and stress can decrease its levels. Research shows that you can do things to improve your levels of BDNF, such as consuming the spice curcumin (a component of turmeric), restricting calories, doing exercise, being in love, and taking some of a class of antidepressants known as selective serotonin reuptake inhibitors, or SSRIs. Not surprisingly, you can decrease BDNF by eating high levels of saturated fats and refined sugars, as well as by not getting enough of the natural antidepressant tryptophan (sure, it s found in turkey, but there s twice as much in spinach) in your diet. monitor

So what s the biological effect of all this Well, if you have serious memory-related problems, the gray matter in your brain actually shrivels faster than a centenarian sunbather. And the connections that are so important to maintaining memory get blocked and broken and detoured so that your memory function is slowed -- or sometimes lost. In the end, that can cause you to lose the power lines that go to the neighborhood of fashion trivia or to the office complex of phone numbers or to the cul-de-sac of your anniversary date. desktop

Luckily, as you ll see, there are several simple ways to restore those power lines, regrow those neural connections, and preserve one of the most powerful things you can pass along to the generations that follow: your memory. And your wisdom. infosys

Copyright 2007 by Michael F. Roizen, M.D., and Oz Works LLC refurbished laptops

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Excerpted from You: Staying Young by Michael F. Roizen Copyright 2007 by Michael F. Roizen. Excerpted by permission. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher. Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site. wipro

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