.: Where Does Free Radicals Come From?
By:Kacey C.Hall
Free radicals are atoms or groups of atoms that have at least one unpaired electron, which makes them highly reactive. Free radicals promote beneficial oxidation that produces energy and kills bacterial invaders. In excess, however, they produce harmful oxidation that can damage cell membranes and cell contents.
Where does Free Radicals Come From?
Endurance exercise can increase oxygen utilization from 10 to 20 times over the resting state. This greatly increases the generation of free radicals, prompting concern about enhanced damage to muscles and other tissues. So the question now is, how effectively can athletes defend against the increased free radicals resulting from exercise? Do athletes need to take extra antioxidants?
When an oxygen molecule (O2) becomes electrically charged or "radicalized" it tries to steal electrons from other molecules, causing damage to the DNA and other molecules. Over time, such damage may become irreversible and lead to disease including cancer. Antioxidants are often described as "mopping up" free radicals, meaning they neutralize the electrical charge and prevent the free radical from taking electrons from other molecules.
Several interesting concepts have emerged from these types of experimental studies. Regular physical exercise enhances the antioxidant defense system and protects against exercise induced free radical damage. This is an important finding because it shows how smart the body is about adapting to the demands of exercise. These changes occur slowly over time and appear to parallel other adaptations to exercise.
What does Antioxidants Do?
Antioxidants play the housekeeper's role, "mopping up" free radicals before they get a chance to do harm in your body. Researchers have postulated that antioxidants prevent the possible carcinogenic effects of oxidation. Despite numerous studies carried out on the role of antioxidants in cancer and heart disease prevention, the jury is still out as to which groups of people, if any, benefit from taking antioxidant supplements.
Considerable evidence now suggests that oxidants are involved in the development and clinical expression of coronary heart disease and that antioxidants may contribute to disease resistance.
We urge you to find out more about Antioxidants!
Article keywords: antioxidants, free radicals, cancer, aging, heart disease, antioxidant, tobacco smoke, radiation, herbs, papr
Article Source: http://www.articles32.com
Can Antioxidants Prevent Cancer and Aging? More Info at Antioxidants.eask.info
.: New Health Articles
1). Breakthrough: Why Understanding Separation Anxiety Disorder Will Ultimately Cure It
Understanding Separation Anxiety Disorder Will Ultimately Cure It. Separation anxiety is not only common to kids and parents. Believe it or not, it is also what your dog feels every time you leave them.
2). Should You Worry About Global Warming?
What to do instead of worrying about things beyond your control like Global Warming.
3). Causes of Eczema on Hands and Effective Treatment
One of the most annoying forms of eczema is atopic eczema on hands. In this area it can get very irritating indeed. With the constant use of the hands, and their easy reaching access, the itching can become unbearable, and scratching the itch can become a habit which leads to a very severe rash in some people
4). Are You Looking For Simple and Good Panic Attack Help Tips
This article is about how to look for good and simple anxiety attack help tips and what are the various available options for the sufferer.
5). Can Child Panic Attack Be Deadly and What Are Its Tips and Solutions
This article is about what the tips, solutions and options to help the parents and the child, when a child has anxiety attacks.
6). Life as a Compulsive Overeater
This article talks of the struggles of being a compulsive overeater and the cycle of weight loss and weight gain.
7). Improving the Outcome of Stroke
The majority of strokes occur when a blood clot lodges in a blood vessel, blocking blood flow to a portion of your brain (ischemic stroke). The group of brain cells normally nourished by the oxygen in the affected blood vessels dies almost immediately after blood flow is blocked, while surrounding brain cells experience reduced blood flow.
.: Top Health Articles
1). The Hottest Hair Trends And The Sexiest Hairstyles For 2007
Copyright 2006 David Maillie
Hair has become unequivocally important as it can literally make one look like a movie star or a has been from Hee Haw, which died out many years ago. It is big enough that it is a multi billion dollar industry and the average bill in a salon is approaching $100. In the big cities with a hot hairstylist like Jonathon in Beverly Hills prices can easily top $500 for a cut and style.
2). Collarbone Injury
The clavicle or “collar bone” connects the scapula bone in the shoulder to the sternum in your chest. It functions to hold the shoulder upward and backward.
Clavicle fractures are common bone injuries. A break in the clavicle bone is usually a closed fracture that normally takes approximately 6 weeks to heal in an adult, 4 weeks in a child. The injury rarely requires surgery.
3). Cervical Radiculopathy: Diagnosing a Pinched Nerve in the Neck
When a nerve is pinched in the neck’s spinal column, pain can be such a prominent symptom that more subtle, but diagnostic, aspects are overlooked.
By way of background, the spinal cord in the neck is connected to the nerves of the arms through pairs of spinal nerves. These spinal nerves, also known as roots or “radicles,” transmit incoming messages (electrical impulses) from the arms’ nerves concerning sensations of touch, pain, heat and cold on various patches of skin.
4). Can Chocolate Really Kill Your Dog
We have all heard this all of our lives but how big a threat is it really? Is it life threatening or will it just make him sick? How much chocolate does the animal have to eat for it to cause a negative reaction?
5). Get That Flat Stomach Look? Get Rid Of Big Tummy, Pot Belly And Beer Belly Fast.
How to get that flat stomach look and get rid of big tummy, pot belly and beer belly fast?
By exercising your Transversus Abdominus Muscle. This is the muscle in your abdomen that holds your stomach in giving you the flat belly look. This muscle acts like a corset around your tummy by holding your tummy in and if the muscle is weak, your belly will be distended more easily making your tummy looking much bigger than it should just like having a beer belly.
6). How Long Will It Take To Gain Muscles| Build Muscle Mass
There are many factors to consider when you want to know how long will it take for you to gain and build muscle mass. Questions like are you eating enough and the right nutrients to accelerate muscle growth, are you exercising correctly and regularly and do you have the genes for quick muscle growth need to be addressed.
In this article, we shall discuss whether you have the genetic make up to gain and build muscles quickly.
7). Muscle Imbalance And Chronic Injuries
Injuries can occur anywhere and at anytime, but the most prevalent place of occurrence is in the workplace. The reason for such a high rate of injury is that people spend 8-18 hours a day, 5-7 days a week performing unidirectional (one-way) movement patterns, causing an imbalance in the musculoskeletal system that results in the overuse and under use of certain muscle groups.