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Rest may be best medicine to treat some pains, says study

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Getting rest may be as effective as taking medication to treat common musculoskeletal disorders such as carpal tunnel syndrome and lower back pain, which is caused by repeated moderate-strain activity, scientists have found.

In a study conducted in rats, researchers showed that a four-week period of rest was nearly as effective as an experimental drug at reducing discomfort and regaining function.

“Rest appears to be a good first treatment choice,” said Amanda White, a postdoctoral fellow at Temple University in the US.

 

“Other treatments following rest should include exercises to improve tissues, and pain reducers if needed. If symptoms do not subside and strength does not return following this approach, then pharmacological treatments may be needed to aid recovery,” White said in a statement.

The researchers trained rats to repeatedly pull a lever in order to model the types of repetitive-strain injuries humans experience.

After 12 weeks, the rats showed a weaker grip strength, discomfort and increased collagen production in the forearm – evidence of strain-induced tissue damage.

The researchers then allowed the rats to rest for four weeks. During this rest period one group of rats received an experimental drug that blocks a neurotransmitter, Substance P, which is associated with the sensation of pain, while the other group did not.

“We found that the four-week rest treatment reduced collagen production, improved strength and decreased discomfort,” said White.

“The drug blocking Substance P signaling also had similar effects, and was somewhat better at improving grip strength, but at the same time made the animals less sensitive to very hot temperatures, which is concerning. This led us to conclude that rest may be the better treatment,” she said.

There appears, however, to be a tipping point at which rest is not sufficient and medications are needed, researchers said.

While the study showed rest was sufficient for recovering from repeated moderate-strain activity, previous studies indicated it was not sufficient when the lever was harder to pull, causing more strain.

In investigating the Substance P-blocking agent and other drugs, the researchers are focused on developing ways to help the tissue actually recover from overuse-induced injury, not just relieve pain.

In previous experiments the researchers tried giving the rats ibuprofen and other pain relievers while they were performing the lever-pulling task; however, this seemed to only mask the pain while allowing the rats to continue to pull hard, worsening the tissue damage.


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Health

Weight Loss Tips Recommended by Personal Trainers

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Weight loss is something that we all struggle with. Sometimes we are successful in reducing our weight but more often than not, the number in the weighing scale slowly creeps back up. Most of us have already tried the latest diet trend in the hopes that it will lead us to a better looking us, but then, life happens and we forget that we are on a diet or that we feel frustrated with the lack of results. Still, we keep on finding ways to get rid of the excess pounds that we are carrying. With that being said, it might be a good idea for us to stop for a while and take stock of what personal trainers have got to say about losing weight. Who knows? We might pick up a thing or two about their weight loss tips that we can apply in our day to day lives. Here are some suggestions that you might want to consider.

Stay away from booze and sugar

If you really want to lose weight then ditch the sugar and booze. These two are known to be calorie-laden which is why they contribute to weight gain. If you can’t stay away from drinking alcoholic beverages, you can limit to a glass for girls and two glasses for men. As for the refined sugars, there are natural sweeteners available such as honey and stevia.

 

Don’t go more than 3 hours without eating

Although the exact science for this is still being studied, it appears that eating snacks in between meals can help keep your blood sugar levels steady. This means that your energy level will remain stable throughout the day and less sugar or carb binges which can cause weight gain on your part.

Mix your exercises up

Another tip that personal trainers have given with regards to losing weight is to mix your fitness routine as much as possible. Sticking to the same program for months will cause you to hit a plateau in your progress which can make you feel frustrated with the lack of improvement. A better option would be to mix your exercises so that your muscles will remain guessing as to which muscle group will be tested. The best part is that you are constantly strengthening and conditioning your muscles for a more even looking physique.

Drink plenty of water

Who would have thought that even the simplest act can do your weight loss goal a whole lot of good? Drinking water constantly can help flush the toxins from your body while ensuring that your skin remains properly hydrated. Water can also help improve digestion so that your body will be able to absorb nutrients from the food that you eat better.

These are just a few tips that you might want to consider the next time you are planning on shedding weight. What’s great about these fitness tips is that they are simple enough to follow but will get you amazing results in no time.

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Health

Study: Dietary supplements won’t help you live longer

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Doctors at Tufts University in Massachusetts, the US, say it’s pretty clear that supplement use has no benefit for the general population and is not a substitute for a healthy balanced diet.

Their research found that vitamins A and K, magnesium, zinc and copper were linked to a lower risk of death from heart disease or stroke — but only when they came from foods, abc7news.com wrote.

Coauthor Fang Fang Zhang, an associate professor of epidemiology at the Tufts University Friedman School of Nutrition Science and Policy, said getting nutrients in the right quantities from food was associated with a longer life.

 

In fact, Zhang said some supplements even appear to have health risks. People who took high doses of calcium supplements had a 53 percent higher risk of dying from cancer than people who were not taking supplements,

However, if you have been diagnosed as deficient in a certain nutrient, don’t stop taking it without talking to your doctor first.

The research team used data from 30,000 US adults who participated in a National Health and Nutrition Examination Survey from 1999 to 2010.

The research was published in the Annals of Internal Medicine.

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Health

Whitening products may damage teeth:Study

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Teeth whitening products – that promise to make your smile brighter – may also be causing tooth damage, a study has found.

Scientists at Stockton University in the US found that hydrogen peroxide, the active ingredient in over-the-counter whitening strips, can damage the protein-rich dentin tissue found beneath the tooth’s protective enamel.

The tooth is made of three layers: the outer tooth enamel, an underlying dentin layer and connective tissue that binds the roots to the gum.

 

Most studies of whitening strips have focused on tooth enamel, which contains very little protein.

The team focused on dentin, which makes up most of the tooth and has high levels of protein, most of which is collagen.

It is well established that hydrogen peroxide can penetrate the enamel and dentin. Previous work by the researchers showed that collagen in the dentin layer decreased when teeth were treated with whitening strips.

“We sought to further characterise what the hydrogen peroxide was doing to collagen. We used entire teeth for the studies and focused on the impact hydrogen peroxide has on the proteins,” said Kelly Keenan, associate professor at Stockton University.

The researchers demonstrated that the major protein in the dentin is converted to smaller fragments when treated with hydrogen peroxide.

In additional experiments, they treated pure collagen with hydrogen peroxide and then analysed the protein using a gel electrophoresis laboratory technique that allows the protein to be visualised.

“Our results showed that treatment with hydrogen peroxide concentrations similar to those found in whitening strips is enough to make the original collagen protein disappear, which is presumably due to the formation of many smaller fragments,” Keenan said in the statement.

The researchers point out that their experiments did not address whether collagen and other proteins in the teeth can be regenerated, so it is unknown if the tooth damage is permanent.

Next, they plan to further characterise the protein fragments released when collagen is treated with hydrogen peroxide and determine if hydrogen peroxide has the same impact on other proteins in the teeth.

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