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October 13—A new study found that people of all age groups who received an updated COVID vaccine had reduced risk of severe disease and death, regardless of immunity from prior infection or vaccination. And a pig liver surgery in a patient with an incurable cancerous tumor brings us closer to transplants from other species.

Plus, I sit down for a conversation with a former physician to the president for a recent episode of Science Quickly. Find that and more news below!

Lauren Young, Associate Health Editor


A former White House physician reveals the medical realities of caring for the president of the U.S.

The health of President Trump and former President Biden has recently come under the spotlight, causing the public and medical experts to discuss how age-related health issues—from cognition to cancer to cardiovascular conditions—should be evaluated among our top elected officials. To get some insight on what White House medicine looks like, I interviewed former physician to the president, Jeffrey Kuhlman, in a recent episode of Science Quickly. In an edited excerpt of our conversation below, Kuhlman addresses age and politics.

Young: You brought up age. How much of the public’s concern around a political figure’s age is actually warranted from a medical perspective?

Kuhlman: I would state the obvious: age is the number-one risk factor for heart disease, it’s the number-one risk factor for cancer, and it’s the number-one risk factor for neurodegenerative conditions or cognitive decline.

I think that age is important. We have a gerontocracy. We have the oldest person ever elected to be president as the current president, and he’ll be 82 when he completes his second term. We have a senator who’s 91. New York Times invited me to write an essay about neurocognitive assessment. It is a fact of science, it’s not a political attack, that humans past the age of 60, [nearly] every single human starts to have cognitive decline.

The current president, who’s 79, he would benefit from a neurocognitive assessment. And that’s testing that does memory, reasoning, speed of processing, spatial visualization. So it just needs to be [a] more comprehensive assessment for these senior citizens that are in elected positions of great decision-making in the world.

Listen to the full interview with Jeffrey Kuhlman on Science Quickly, and wherever you listen to your podcasts.

Connect with me via email (lauren.young@sciam.com) or on Bluesky @laurenjyoung.bsky.social‬.

—Lauren Young

 
Top Stories
Annual COVID Vaccines Protect People against Severe Disease, Even with Prior Immunity

A new study shows that receiving an updated COVID vaccine reduced people’s risk of severe disease and death in all age groups, regardless of immunity from prior infection or vaccination

RFK, Jr., Says Tylenol Use for Circumcision Causes Autism. Here’s Why That Claim Is Flawed

Studies suggesting circumcision rates are linked with autism are “riddled with flaws”

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“Brilliant (and brilliantly funny)…”—Deborah Blum

“Mary Roach is her own genre of book—gonzo, hilarious, wildly educational. This is Roach at her finest.” —Daniel Kraus, author of Whalefall. Learn more about the book here.

Pig Liver Surgery Moves Us Closer to Transplants from Other Species

Surgeons in China transplanted part of pig liver into a patient with an incurable cancerous tumor, and it functioned for more than a month

If you’re enjoying this newsletter, consider a subscription to Scientific American. Dive deeper into the health news that matters most to you!
Nobel Prizes, COVID Vaccine Updates and Malnutrition in Gaza

The CDC updates COVID vaccine guidance and stirs controversy over childhood immunizations. And global health experts warn of rising child malnutrition in Gaza.

Supreme Court Weighs Ban on Scientifically Discredited ‘Conversion Therapy’

The U.S. Supreme Court will determine whether Colorado’s ban on conversion therapy, an ineffective and often harmful practice targeting LGBTQ+ youth, violates a therapist’s right to free speech

AI Reads Your Tongue Color to Reveal Hidden Diseases

Inspired by principles from traditional Chinese medicine, researchers used AI to analyze tongue color as a diagnostic tool—with more than 96 percent accuracy

Babies Are Born with High Levels of Alzheimer’s-Linked Proteins in Their Brains

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Bacteria Use Viral Naps to Build Immunity

New research shows how microbes use napping viruses to vaccinate themselves

Scientists Perform First-of-Its-Kind Transplant Using Kidney with a Converted Blood Type

A man diagnosed with brain death received a kidney that was modified to be type O, which is compatible with all blood types

 
What We’re Reading
  • The Trump Administration lays off dozens of CDC officials, including high-ranking scientists. | The New York Times
  • Former President Biden undergoes radiation therapy as his prostate cancer care enters new phase. | NBC News
  • U.S. measles cases continue to climb, with outbreaks in multiple states across the country. | NPR
 
From The Archive
Biden Is Out—And the Discussion of Aging in Politics Is In

The current presidential race has ensured that age will be a key and likely fraught consideration in future elections. Can science help determine how old is too old for a candidate before politics does?

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