Why getting physically stronger will help you live longer

S

trength is a key factor in longevity and an extended healthy life. And in fact, resistance training may be the single most important thing you can add to your fitness regimen. Here’s how getting stronger will make you harder to kill.

 

via Why getting physically stronger will help you live longer.

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Stanford researchers create tiny, wirelessly powered cardiac device

One big problem we have with bio-implantable devices, like cardiac implants, is that they require a battery–and batteries need to be changed once in a while. This means more surgery. 

In this day and age of wireless devices, it seems like

 a no-brainer to choose to power the devices wirelessly. So what’s been holding us up?

It turns out, the existing models told researchers that radio waves couldn’t penetrate deeply enough into human tissue to be useful for power delivery. The human body is a poor conductor of electricity. Ultimately, it took someone willing to question the accepted models, to show that it could, in fact, be done.

By ignoring the currently held ideas of “that isn’t possible”, Ada Poon and her team showed that radio waves can travel in a different way– and by doing so, they can be used as a wireless source for power delivery; in fact, using this method, it is actually advantageous that human tissue is such a poor electrical conductor.

“In this high-frequency range, we can increase power transfer by about 10 times over earlier devices,” said Ho, who honed the mathematical models.

Two hurdles remained:
1) how to use this wireless delivery safely to avoid unnecessary tissue heating
2) how to orient the antennas for maximum efficiency in the constantly moving environment of a human body.

Differences in alignment of just a few degrees could produce troubling drops in power.

“This can’t happen medical devices,” said Poon. “As the human heart and body are in constant motion, solving this issue was critical to the success of our research.” The team responded by designing an innovative slotted transmitting antenna structure. It delivers consistent power efficiency regardless of orientation of the two antennas.

The new design serves additionally to focus the radio waves precisely at the point inside the body where the implanted device rests on the surface of the heart – increasing the electric field where it is needed most, but canceling it elsewhere. This helps reduce overall tissue heating to levels well within the IEEE standards. Poon has applied for a patent on the antenna structure.”

via Stanford researchers create tiny, wirelessly powered cardiac device | Stanford News Release.

Zinc deficiency mechanism linked to aging, multiple diseases

A new study has outlined for the first time a biological mechanism by which zinc deficiency can develop with age, leading to a decline of the immune system and increased inflammation associated with many health problems, including cancer, heart disease, autoimmune disease and diabetes.

The recommended daily intake is 11 mgs for adults, though aging adults don’t often absorb zinc well. Taking anything over 40 mgs each day can lead to problems.

via Zinc deficiency mechanism linked to aging, multiple diseases.

Without Alcohol, Red Wine Is Still Beneficial – NYTimes.com

The study, published last week in Circulation Research, concludes that the blood-pressure-lowering effects of red wine are attributable not to its alcohol content, but to the beneficial chemicals called polyphenols that it contains, even in its nonalcoholic form.

In fact, they suggested alcohol may limit the beneficial effect of the polyphenols.

via Without Alcohol, Red Wine Is Still Beneficial – NYTimes.com.

Arsenic in Rice? Yes, Especially Brown Rice – AARP

Yes, it is true. And it is due to the pesticides and insecticides we put on our soil. Shame on us for continuing such an idiotic practice. Two alternatives are suggested:

1) cook your rice the traditional Asian way with 6 cups water to 1 cup rice. You loose nutrients to the water this way, but you also lose about 30% of the arsenic in the hull of brown rice.

2) eat quinoa

via Arsenic in Rice? Yes, Especially Brown Rice – AARP.

Woman Grows a New Ear on Her Arm, Has It Attached to Her Head (Warning: Graphic)

Woman Grows New Ear on Her Arm, Then Has It Attached to Her Head
(Warning: this article might be a little “eewww” for some people)

Remember the mouse with ear grown on its back? Now, researchers used a woman’s own rib cartilage to grow a w

oman a new ear–first on her arm, then they removed it from her arm and attached to her head. The photos show the ear still swollen, but they anticipate it will look pretty normal once the swelling subsides.

via Woman Grows a New Ear on Her Arm, Has It Attached to Her Head (Warning: Graphic).

Antibiotic oomph: the eyes have it

Researchers noticed it was nearly impossible to infect a healthy eye, so they set about discovering what was so good at fighting off infections. What they found was a keratin protein which may lead to even better means of dealing with some of our worst infectious pathogens like flesh-eating strep.

via Antibiotic oomph: the eyes have it.

How Big Pharma Hooked America on Legal Heroin: The OxyContin Files | Motherboard

Oxycodone has been around since 1916. Purdue Pharma just added a time release element to it, called their “new” drug Oxycontin, slapped a patent on it, then spent millions to give over 5,000 doctors all-expense paid trips to conferences esp

ousing the magical pain relief benefits of their “new” drug. They claimed there was less than a 1% chance of addiction to their new drug. We can liken them to the hosts of the old opium dens who helped their patrons become addicted, then sapped them for everything–in some cases, even their lives. Purdue’s patent expires shortly. What will happen then?

via How Big Pharma Hooked America on Legal Heroin: The OxyContin Files | Motherboard.

Brain Neurons and Diet Influence Onset of Obesity and Diabetes in Mice | Neuroscience News

The absence of a specific type of neuron in the brain can lead to obesity and diabetes in mice report researchers in The EMBO Journal. The outcome, however, depends on the type of diet that the animals are fed.

via Brain Neurons and Diet Influence Onset of Obesity and Diabetes in Mice | Neuroscience News.

What Is Cold Pressed Oil? | LIVESTRONG.COM

Cold pressed oil doesn’t use heat to help extract the oil from its source. Because of this, more nutrients remain in cold pressed oils.

via What Is Cold Pressed Oil? | LIVESTRONG.COM.

Japan tooth patch could be end of decay

 

Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.

The “tooth patch” is a hard-wearing and ultra-flexible material made from hydroxyapatite, the main mineral in tooth enamel, that could also mean an end to sensitive teeth.

“This is the world’s first flexible apatite sheet, which we hope to use to protect teeth or repair damaged enamel,” said Shigeki Hontsu, professor at Kinki University’s Faculty of Biology-Oriented Science and Technology in western Japan.

 

via Japan tooth patch could be end of decay – FRANCE 24.

 

Popular pain-relieving medicines linked to hearing loss in women

Over 60,000 women were followed. Of the 10,000+ who reported hearing loss during the 14-year period, there was a 13% increased risk for those who used ibuprofen 2 or more times each week.

via Popular pain-relieving medicines linked to hearing loss in women.

Super tree maps 20,000 medicinal, related plants

“By studying and recording over 1,500 medicinal plants reported to have health benefits in three continents, the researchers created a family tree of plant species for each area, demonstrating how medicinal plants relate to each other. They then combined the trees to create a ‘super’ family tree representing 20,000 species to reveal which medicinal plants from different areas were related. The results were extraordinary. Not only did the researchers find examples of very closely related plants being used as medicines in different parts of the world, they also discovered they were being used to treat the same ailments. Furthermore, they found that many modern day drugs come from these groups of closely related plants.”

“Across the whole of the super tree we found many groups of related plants that had been independently discovered. One example is that plants from the soapberry family are used in Nepal, the Cape of South Africa and New Zealand to treat gastro-intestinal problems. It seems these treatments, using closely related plants, have been independently discovered. Additionally, the study showed that other closely related plants that are not used by traditional medicine in these regions, such as maple or lychee trees, could also have medicinal properties. “Our super tree will help companies involved in bioprospecting narrow their search for plants with medicinal properties which could lead to new disease fighting drugs.” continued Dr Hawkins. “It’s incredibly exciting to think that communities around the world that weren’t in contact with each other have sampled related plants and are using them to treat the same things.”

via Super tree maps 20,000 medicinal, related plants.

Stem cells from blood may banish wrinkles – Telegraph

Injections of stem cells taken from patients blood may finally banish wrinkles if clinical trials of a new treatment are successful.

via Stem cells from blood may banish wrinkles – Telegraph.

Brainy beverage: study reveals how green tea boosts brain cell production to aid memory

Drinking green tea increases neurogenesis.

It has long been believed that drinking green tea is good for the memory. Now Chinese researchers have discovered how the chemical properties of China’s favorite drink affect the generation of brain cells, providing benefits for memory and spatial learning.

via Brainy beverage: study reveals how green tea boosts brain cell production to aid memory | KurzweilAI.

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