052 - Genetic Judo, Young Blood, and Gray Hair - HealthHippieMD Week In Review
Age is Just a Number
As seniors face complex health decisions, age alone may not be the best guide. Medical associations and health groups are shifting to consider life expectancy when recommending screenings and treatments. With the average life expectancy of a 75-year-old being 12 years, online tools like the "Know Your Chances" calculator can estimate mortality and disability risks, providing valuable context beyond age. By incorporating factors like smoking history and health status, patients can make more informed decisions about their healthcare, ultimately improving outcomes and avoiding unnecessary treatments. A Number That Should Guide Your Health Choices (It's Not Your Age) - The New York Times (gift article)
Immune System Influences Behavior
A recent study found the immune system (at least in mice) plays a role in altering our behaviors, especially in response to allergic triggers. "We find immune recognition controls behavior, specifically defensive behaviors against toxins that are communicated first through antibodies and then to our brains." Our Immune System May Help Guide Behavior
Humata.AI: ChatGPT to Query Academic Manuscripts
If you rely on academic publications for your work, prepare to have your mind blown. With Humata.AI,, after uploading a pdf of a manuscript, you can ask questions about the content or ask questions about a folder full of articles in aggregate. It worked incredibly well in the manuscripts I tried. My only complaint about this nascent tool was the limited ways to interact with the content, but I'm sure features will expand as the tool matures. Humata.ai worked much better in my experimentation than another tool I tried, Liquidtext. I suspect the field will get increasingly crowded with science-aware chatbots. Humata.AI is free for the first 60 pages of content, $15/month for more.
Using ChatGPT to Improve Your Writing
Large Language Models, like ChatGPT, are helpful in various ways for writing. Here are some ideas: 5 Ways ChatGPT Can Improve, Not Replace, Your Writing +And here is an article about using ChatGPT in medical diagnosis: A Mystery in the E.R.? Ask Dr. Chatbot for a Diagnosis.
Yo-Yo Diet Industry's Latest Spin
The weight loss industry is witnessing a new wave of reinvention as Americans continue their yo-yo relationship with dieting. Diet apps like Noom and WW (formally WeightWatchers) are now adopting a psychological approach to weight loss, emphasizing self-acceptance and joyful movement. Recently, Noom and WeightWatchers have integrated GLP-1 obesity drugs like Ozempic into their services, acknowledging that medications can be crucial in achieving good health for many. This shift reflects the desire to lose weight, though the approach has evolved from moralizing to a more attainable, value-neutral goal. The Diet Industry Is Pivoting to Ozempic
Unraveling the Mystery Behind Graying Hair
Gray hair is a visible example of how genetics and aging interact. Hair gets its color from melanin, a natural pigment produced by melanocytes. As we age, stem cell melanocytes can become trapped, leading to gray hair. Stress may also play a role in graying. While there's no reliable way to prevent or reverse gray hair, recent research suggests some intriguing possibilities. Why Does Our Hair Turn Gray? The Science of Aging Hair, Explained
Health System Monopolies
The NY Times published an opinion piece on healthcare monopolies: Opinion | The Ridiculous Medical Bill Brought to You by the Latest Hospital Merger - The New York Times (gift article). Hospital mergers and consolidations have created monopolies in the healthcare system, leading to decreased patient choice, rising prices, and limited innovation. The Biden administration has attempted to address the issue with antitrust activity, but hospital mergers have proven harder to curb compared to other industries. The Federal Trade Commission faces challenges blocking hospital mergers due to lengthy analysis and limited resources. Vertical mergers, where extensive hospital systems acquire smaller ones or doctors' practices, further exacerbate price increases. States are now considering price regulation as a possible solution to rein in the power of giant health systems.
Learning on Vacation
In this article, Arthur C. Brooks explores a vacation model often overlooked—turning leisure into learning. Research suggests that pursuing intrinsic interests and learning something new enhances well-being, even if it involves some sacrifice. By focusing on activities that captivate our curiosity, like taking a class or engaging in a guided retreat, vacations can be transformed into rewarding and content-filled experiences. So, instead of conventional models, consider turning your time off into an opportunity for personal growth and happiness. How to Have Your Most Fulfilling Vacation Ever
Young Blood Slows Aging (in Mice)
In a groundbreaking study, scientists extended the lifespans of older mice by connecting their blood vessels to younger mice, resulting in a 6 to 9 percent longer life for elderly rodents. Though not an anti-aging treatment for humans, the research suggests that compounds present in the blood of young mice may promote longevity. The experiment involved parabiosis, joining the animals together for an extended period, and upon separation, the aging process of the older mice appeared to have reversed, making them biologically "younger." Blood of Young Mice Extends Life in the Old - The New York Times (gift article)
Genetic Judo
"It's very cool. It turns something the cancer cell needs to stay alive into something that kills it, like changing your vitamin into a poison." Scientists at Stanford have developed a novel molecule that could potentially lead to groundbreaking cancer drugs. The molecule links cancer-driving proteins to cell-death genes, effectively turning the molecules promoting deadly growth into self-destruction triggers. In lab experiments, this dumbbell-shaped molecule was successful in activating cell-death genes in a blood cancer, diffuse large B-cell lymphoma. Flipping a Switch and Making Cancers Self-Destruct - The New York Times (gift article)