The Friday Five: A new blood test to detect Alzheimer's

The Friday Five: A new blood test to detect Alzheimer's

A new blood test has been developed to detect Alzheimer's. Other promising studies covered in this week's Friday Five include: vets with PTSD can take their psychologist anywhere with a new device, intermittent fasting could improve circadian rhythms, a new year's resolution for living longer, and a discovery in 3-D printing eye tissue.

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The Friday Five covers five stories in research that you may have missed this week. There are plenty of controversies and troubling ethical issues in science – and we get into many of them in our online magazine – but this news roundup focuses on scientific creativity and progress to give you a therapeutic dose of inspiration headed into the weekend.

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Matt Fuchs
Matt Fuchs is the host of the Making Sense of Science podcast and served previously as the editor-in-chief of Leaps.org. He writes as a contributor to the Washington Post, and his articles have also appeared in the New York Times, WIRED, Nautilus Magazine, Fortune Magazine and TIME Magazine. Follow him @fuchswriter.
These doctors have a heart for recycling

In the U.S. and Europe, it is illegal to reuse pacemakers and other implants. Therefore, cardiologists export them to the global South where they save the lives of people of all ages.

Carsten Israel

This is part 3 of a three part series on a new generation of doctors leading the charge to make the health care industry more sustainable - for the benefit of their patients and the planet. Read part 1 here and part 2 here.

One could say that over 400 people owe their life to the fact that Carsten Israel fell in love. Twenty years ago, as a young doctor in Frankfurt, Germany, he began to court an au pair from Kenya, Elisabeth, his now-wife of 13 years with whom he has three children. When the couple started visiting her parents in Kenya, Israel wanted to check out the local hospitals, “just out of professional curiosity,“ says the cardiologist, who is currently the head doctor at the Clinic for Interior Medicine in Bielefeld. “I was completely shocked.“

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Michaela Haas
Michaela Haas, PhD, is an award-winning reporter and author, most recently of Bouncing Forward: The Art and Science of Cultivating Resilience (Atria). Her work has been published in the New York Times, Mother Jones, the Huffington Post, and numerous other media. Find her at www.MichaelaHaas.com and Twitter @MichaelaHaas!
These technologies may help more animals and plants survive climate change

As the climate changes, the ripples will reach everywhere. Better data is needed for both plants and animals, and scientists are looking for genes that could allow crops to survive.

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This article originally appeared in One Health/One Planet, a single-issue magazine that explores how climate change and other environmental shifts are making us more vulnerable to infectious diseases by land and by sea - and how scientists are working on solutions.

Along the west coast of South Florida and the Keys, Florida Bay is a nursery for young Caribbean spiny lobsters, a favorite local delicacy. Growing up in small shallow basins, they are especially vulnerable to warmer, more saline water. Climate change has brought tidal floods, bleached coral reefs and toxic algal blooms to the state, and since the 1990s, the population of the Caribbean spiny lobster has dropped some 20 percent, diminishing an important food for snapper, grouper, and herons, as well as people. In 1999, marine ecologist Donald Behringer discovered the first known virus among lobsters, Panulirus argus virus—about a quarter of juveniles die from it before they mature.

“When the water is warm PaV1 progresses much more quickly,” says Behringer, who is based at the Emerging Pathogens Institute at the University of Florida in Gainesville.

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Temma Ehrenfeld
Temma Ehrenfeld writes about health and psychology. In a previous life, she was a reporter and editor at Newsweek and Fortune. You can see more of her work at her writing portfolio (https://temmaehrenfeld.contently.com) and contact her through her Psychology Today blog.