Scientists Are Studying How to Help Dogs Have Longer Lives, in a Bid to Further Our Own

Scientists Are Studying How to Help Dogs Have Longer Lives, in a Bid to Further Our Own

Feeding dogs only once a day is showing health benefits in a large study, scientists report.

Photo by Eric Ward on Unsplash

The sad eyes. The wagging tail. The frustrated whine. The excited bark. Dogs know how to get their owners to fork over the food more often.

The extra calories dogs get from feeding patterns now used by many Americans may not be good for them from a health and longevity viewpoint. In research from a large study called the Dog Aging Project, canines fed once a day had better scores on cognition tests and lower odds of developing diseases of organs throughout the body: intestinal tract, mouth and teeth, bones and joints, kidneys and bladder, and liver and pancreas.

Fewer than 1 in 10 dog owners fed their furry friends once daily, while nearly three fourths provided two daily meals.

“Most veterinarians have been led to believe that feeding dogs twice a day is optimal, but this is a relatively new idea that has developed over the past few decades with little supportive evidence from a health standpoint,” said Matt Kaeberlein, PhD, Co-Director of the Dog Aging Project, a professor of pathology and Director of the Healthy Aging and Longevity Research Institute at the University of Washington. Kaeberlein studies basic mechanisms of aging to find ways of extending the healthspan, the number of years of life lived free of disease. It’s not enough to extend the lifespan unless declines in biological function and risks of age-related diseases are also studied, he believes, hence the healthspan.

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L. Michael Posey
A pharmacist-editor-journalist since 1980, L. Michael Posey is a regular writer and editor for The Gerontological Society of America, Postgraduate Healthcare Education’s PowerPak.com website, and other clients. The author of several books and many news and journal articles, Posey is a founding editor of a landmark textbook in pharmacy, Pharmacotherapy: A Pathophysiologic Approach, a McGraw Hill title now in its 11th edition. He holds a master's degree in health and medical journalism and baccalaureate degrees in pharmacy and microbiology from the University of Georgia. Posey is the father of four sons and a daughter and resides in the Wine Country north of San Francisco. Follow him on Twitter @lmposey.
MILESTONE: Doctors have transplanted a pig organ into a human for the first time in history

A surgeon at Massachusetts General Hospital prepares a pig organ for transplant.

Michelle Rose/Massachusetts General Hospital

Surgeons at Massachusetts General Hospital made history last week when they successfully transplanted a pig kidney into a human patient for the first time ever.

The recipient was a 62-year-old man named Richard Slayman who had been living with end-stage kidney disease caused by diabetes. While Slayman had received a kidney transplant in 2018 from a human donor, his diabetes ultimately caused the kidney to fail less than five years after the transplant. Slayman had undergone dialysis ever since—a procedure that uses an artificial kidney to remove waste products from a person’s blood when the kidneys are unable to—but the dialysis frequently caused blood clots and other complications that landed him in the hospital multiple times.

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Sarah Watts

Sarah Watts is a health and science writer based in Chicago.

The World’s First Longevity Charter City: An interview with Niklas Anzinger.

Niklas Anzinger is the founder of Infinita VC based in the charter city of Prospera in Honduras. Infinita focuses on a new trend of charter cities and other forms of alternative jurisdictions. Healso hosts a podcast about how to accelerate the future by unblocking “stranded technologies”.This spring he was a part of the network city experiment Zuzalu spearheaded by Ethereum founder Vitalik Buterin where a few hundred invited guests from the spheres of longevity, biotechnology, crypto, artificial intelligence and investment came together to form a two-monthlong community. It has been described as the world’s first pop-up city. Every morning Vitalians would descend on a long breakfast—the menu had been carefully designed by famed radical longevity self-experimenter Bryan Johnson—and there is where I first met Anzinger who told me about Prospera. Intrigued to say the least, I caught up with him later the same week and the following is a record of our conversation.

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Ingemar Patrick Linden
Driven by a passion to probe the fundamental questions we are confronted with, Dr. INGEMAR PATRICK LINDEN has been on a journey of discovery taking him from Lund University in Sweden, to UCL in London, to University of California, to New York, where he has taught philosophy for almost a decade. Death. It does not get more fundamental than that. One of the ideas that has remained a firm conviction of the author’s since childhood is that we do not have enough time. We are but the beginnings of complete humans, fragments of what we could be. It was the realization that not all share this view, in fact, surveys show that most do not, that inspired, and necessitated, the writing of THE CASE AGAINST DEATH.