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16 October, 2007
Alternative Medicine-1: "Miracles of Water Therapy"
12 October, 2007
Health Tips-9: "Exercise can make the brain strong and make it work faster!"
The research work carried out by Fred H.Gage and colleagues at Salk Institute for Biological Studies, near San Diego, US, initially on mice and then human beings confirms that exercise can improve the performance of the brain by boosting memory and cognitive processing speed. Exercise can, in fact, create a stronger, faster brain.
In another study at the University of Illinois at Urbana- Champaign on a group of elderly sedentary people, were assigned aerobic exercise program. After six months, their brains were scanned using an M.R.I. Those who had been doing aerobic exercise showed significant growth in several areas of the brain. These results raise the hope that the human brain has the capacity not only to produce new cells but also to add new blood vessels and strengthen neural connections, allowing young neurons to integrate themselves into the wider neural network. "The current findings are the first, to our knowledge, to confirm the benefits of exercise training on brain volume in aging humans," the authors concluded.
And the benefits aren't limited to adults. A team of University of Illinois scientists have studied school-age children and found that those who have a higher level of aerobic fitness processed information more efficiently. The researchers also found that higher levels of aerobic fitness corresponded to better standardized test scores among a set of Illinois public school students.
What is it about exercise that prompts the brain to remake itself? Different scientists have pet theories. One popular hypothesis credits insulin-like growth factor 1, a protein that circulates in the blood and is produced in greater amounts in response to exercise. IGF-1 has trouble entering the brain — it stops at what's called the "blood-brain barrier" — but exercise is thought to help it to do so, possibly sparking neurogenesis.
26 September, 2007
Health Tips-8: "Is the 'Five Second Rule' safe?"
Believe it or not, scientists have tested the rule. We are sorry to report it is not necessarily true. Bacteria can attach itself to your food even if you pick it up super-fast. But will your dropped food contain enough bacteria to make you sick? It is possible and that is why you should not eat food that has hit the floor.
A floor that looks dirty is usually worse, but even dry floors that look clean can contain bacteria. Why? Some germs can survive on the floor for a long time. And unless you have a powerful microscope, you can't check to see how many germs are there. So chances are, some bacteria are probably living on your kitchen floor and the cafeteria floor at school.
When in doubt, toss it out. Some bacteria are not harmful. But others can give you awful stuff, like diarrhoea. You can't see the bacteria and even if you could, it does not take much to make you sick. So what are you to do with that delicious piece of whatever that just slipped from your grip? The safest choice is to throw it out. Or give it to your brother. Just kidding! (MCT)
Health Tips-7: "New Ways to Fight Ageing"
Their study, published in the journal, Cell, helps explain why animals fed very low calorie diets live longer, but it also offers new ways to try to replicate the effects of these diets using a pill instead of hunger, the researchers said.
The key is a family of enzymes called sirtuins. They are controlled by genes called SIRT1, SIRT2 and so on. They found the enzymes controlled by these genes help preserve the mitochondria - little organs inside of cells that provide their energy.
"They are also very important for keeping the cells healthy and alive when they undergo stress and DNA damage, as we undergo every day during the aging process."
Courtesy: Reuters/The New Indian Express, Chennai, Sep.22, 2007
25 September, 2007
Health News-2: "Ban on Smoking"
Health Warnings-3: 'Supplements of Calcium can raise Heart Attack Risk' - DPA
A trial run by Auckland University's bone research group found the supplements caused a 40% increase in heart attacks, the Sunday Star-Times reported.
Reid told the appear that three other international studies on calcium supplements had since been reviewed, and all showed varying degrees of elevated risk of heart attacks, ranging from 10 to 20%.
"This is potentially very important because there are so many people around the world who take calcium supplements." Reid said the study found calcium supplements dramatically reduced older women's risk of bone fractures and bone density loss.
Courtesy: DPA/Deccan Chronicle, Chennai, Sep.24, 2007
28 August, 2007
Health Tips-6: 'Mighty Mushrooms' - Health, Supplement to The New Indian Express
Mushrooms have been used for thousands of years both as food and for medicinal purposes. They are often classified as a vegetable or a herb, but they are actually fungi. While there are over 14,000 mushrooms, only about 3,000 are edible, about 700 have known medicinal properties, and fewer than one percent are recognized as poisonous.
Mushrooms are an excellent source of potassium, a mineral that helps lower elevated blood pressure and reduces the risk of stroke. One medium portabella mushroom has even more potassium than a banana or a glass of orange juice. One serving of mushrooms also provides about 20 to 40% of the daily value of copper, a mineral that has cardioprotective properties.
According to studies, consuming just three and a half ounces of the white button variety each day, can decrease the risk of developing prostate cancer and breast cancer.
(Courtesy: Health, Supplement to The New Indian Express, Madurai, Aug.28, 2007)
20 August, 2007
Health Tips-5: 'Slow down, it is healthy' - The New Sunday Express, Aug.19, 2007
11 August, 2007
Health Tips-4: "Eat Less, Live Longer!"
The search for a drug that will stave off old age is itself very old. Scientists are trying to find a drug that will mimic the effect of calorie restriction. There is a family of enzymes called sirtuins, which act both as sensors of nutrient availability and as regulators of metabolic rate. These might provide the necessary biochemical link between starving and living longer. Some plant-derived molecules are known to activate sirtuins in yeast. One of these molecules, resveratrol, has increased the maximum lifespan of a small fish by 60%. However, some of these molecules are already in clinical trials for safety.
02 August, 2007
Health Warnings-2: "Effects of Noise Pollution"
Mental distress
Ulcers
Migraines
Acidity
Non-cooperative behaviour
Aggression
Learning impairment
Musculo-skeletal problems
Heart problems
Tinninitus or a ringing sound within the ears (even when there is no noise in the surroundings)
It can hamper performance and productivity.
Chronic noise also affects interpersonal relationships.
(Courtesy: Aruna Chandraraju, Weekly Magazine, The Hindu, April 3, 2005)
