Antarctica Visitors Unwittingly Bring Invasive Species

The far reaches of Antarctica are no longer visited only by scientists and their support staff. Adventure tourists and curiosity seekers from Europe, North America and beyond now come by the boatful — and they’re bringing some souvenirs from home. Ecologist Steven Chown tells Robert Siegel that visitors unknowingly carry seeds on their clothes and bags. He says they’ve helped spread dozens of invasive plant species on the continent and risk permanently changing Antarctica’s ecology.

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 Antarctica Visitors Unwittingly Bring Invasive Species

Why It’s So Important to Keep Moving

Inactivity produced spikes in blood sugar levels in healthy young volunteers, which may help explain why sedentary behavior raises the risk of Type 2 diabetes and heart disease.

Genetic Test Reveals Unexpected Data

Bloomberg News reporter John Lauerman volunteered to have his DNA sequenced by Harvard researchers to demystify the process for the public. What he didn’t expect to uncover was that he possessed two gene variants–one linked to rare blood disorders and the other to a higher risk of Alzheimer’s.

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 Genetic Test Reveals Unexpected Data

Keys To The Diagnostic Workup For Patients With Diabetic Foot Infections

PT0312InfectionLead Keys To The Diagnostic Workup For Patients With Diabetic Foot Infections

Delays in diagnosing diabetic foot infections can increase the risk of complications. Accordingly, these authors offer a closer look at pertinent principles in the diagnostic workup ranging from insights on the patient history and physical exam to key tips on laboratory studies and imaging studies.

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Understanding The Biomechanical Effects Of The Evans Calcaneal Osteotomy

PT0212OsteotomyLead Understanding The Biomechanical Effects Of The Evans Calcaneal Osteotomy

Reviewing the evolution of the Evans calcaneal osteotomy, this author discusses the impact on biomechanics, shares insights from the literature on osteotomy placement and bone graft size, and offers pearls on minimizing the risk of common complications.

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Geoengineered Food? Climate Fix Could Boost Crop Yields, But With Risks

Climate simulations show that massive technological interventions, known as “geoengineering,” could protect food crops from some of the damaging effects of global warming. But researchers say local effects are hard to predict, so geoengineering may not be worth the risk.

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Geoengineered Food? Climate Fix Could Boost Crop Yields, But With Risks

Climate simulations show that massive technological interventions, known as “geoengineering,” could protect food crops from some of the damaging effects of global warming. But researchers say local effects are hard to predict, so geoengineering may not be worth the risk.

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 Geoengineered Food? Climate Fix Could Boost Crop Yields, But With Risks

The Sleep Apnea Business Is Booming, And Insurers Aren’t Happy

Sleep apnea is a condition that can raise the risk of several serious illnesses, including heart disease. Testing for the condition is a lucrative business, and sleep labs have sprung up across the country. But as spending skyrockets, insurers are rethinking how they pay for testing to curb costs.

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The Sleep Apnea Business Is Booming, And Insurers Aren’t Happy

Sleep apnea is a condition that can raise the risk of several serious illnesses, including heart disease. Testing for the condition is a lucrative business, and sleep labs have sprung up across the country. But as spending skyrockets, insurers are rethinking how they pay for testing to curb costs.

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 The Sleep Apnea Business Is Booming, And Insurers Arent Happy

Heroes Of The Taj Hotel: Why They Risked Their Lives

When a Mumbai hotel was besieged by terrorists in 2008, something extraordinary happened: Workers didn’t flee. They stayed behind to help save guests at the risk of their own lives. What could possibly explain it? A new study attempts to answer that question.

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 Heroes Of The Taj Hotel: Why They Risked Their Lives