A Centuries-Old Wellness Hack That Actually Works: Vaccines!
I’m David Higgins, a pediatrician and public health physician who researches vaccine communication and delivery. This newsletter shares clear science, smart policy, and meaningful conversations—because the health of our communities depends on all three.
Hi Community,
I’ve been intentionally unplugged—first for a bit of vacation, then to speak at and attend a conference—so this week, I’m bringing you something a little different.
Earlier this year, I co-authored a piece for The Conversation with a brilliant colleague and immunologist,
. In it, we take a serious (and slightly satirical) look at a proven centuries-old immune-boosting health hack: vaccines!Since I have been unplugged, I’m not sharing the usual roundup of headlines. Again, I’m probably missing major public health or vaccine news. Regular updates on what’s happening and why it matters will be back soon.
Thanks for reading and being part of this community. Let’s keep pushing for truth, compassion, and science that saves lives—together.
-David
Why Vaccines Are the OG Wellness Hack
By
, andAt the University of Colorado Anschutz Medical Campus
There are a dizzying number of tips, hacks and recommendations on how to stay healthy, from dietary supplements to what color of clothes promotes optimal wellness. Some of these tips are helpful and based on good evidence, while others are not.
However, one of the easiest, most effective and safest ways to stay healthy is rarely mentioned: vaccination.
We are a preventive medicine physician and an immunologistwho want people to live the healthiest lives possible. Among the many research-backed ways to live healthier, we encourage people to eat well, exercise regularly, get good sleep and care for their mental health.
And when it comes to your immune system, nothing can replace the essential role vaccines play in promoting whole health. The protection that vaccines provide is an irreplaceable part of living the healthiest lifestyle possible.
Vaccines are essential to health
Some healthy people think they don’t need a vaccine. But your immune system needs more than just a healthy lifestyle to protect your body when vaccine-preventable diseases come knocking on the door.
Imagine the cells of your immune system as athletes preparing for the Olympics. Just as athletes undergo rigorous and specialized training to meet every possible challenge they might face in their event, immune cells need to be primed and ready to fight off every pathogenic challenge you encounter.
Vaccines expose your immune cells to inactivated versions of a pathogen, providing them with practice sessions to recognize and combat the real threat with speed and precision. Vaccines ensure that your immune cells are at their peak performance when faced with the actual infection. Just as well-trained athletes can tackle their competition with skill and confidence, vaccinated immune cells can swiftly and effectively protect your body from diseases.
If a person is unvaccinated and exposed to a disease they haven’t encountered before, their immune cells are unprepared and must play catch-up to fight the pathogen. This leaves your body vulnerable to severe disease.
Even people at the pinnacle of health can unnecessarily suffer from vaccine-preventable diseases because their immune systems might not have been well-trained. Take the story of Austin Booth, a healthy and athletic 17-year-old who was not vaccinated for influenza. Just days after he started to feel ill, he died of the disease.
For healthy people, vaccination can reduce the risk of deathfrom influenza by two-thirds. When people choose to skip vaccines recommended as an essential part of their overall health, there is a greater chance of serious complications or death from a vaccine-preventable disease, regardless of how healthy they may be. These people are playing a potentially life-altering and deadly game of chance.
Vaccine-preventable diseases are still common. In the U.S., hundreds of thousands of adults are hospitalized and thousands die every year from vaccine-preventable diseases such as influenza, pneumococcal pneumonia, respiratory syncytial virus (RSV) and COVID-19. And tens of thousands of adults develop cancer every year from vaccine-preventable diseases such as HPV.
Vaccines are the safest immune health hack
Many of the trendiest health hacks have little to no evidence of improving health. Some are even dangerous. But vaccines are one of the most tested and proven ways to stay healthy.
Vaccines have been used for centuries. In the past 50 years, they have saved an estimated 154 million lives worldwide. Mathematical models estimate that a 25-year-old now has a 35% greater chance of living to their next birthday thanks to vaccines alone.
Not only are vaccines effective, but they are also safe. Yes, vaccines can come with mild and limited side effects – who hasn’t felt a little sluggish or bumped their sore arm after getting vaccinated? More severe vaccine side effects are extremely rare. If you have concerns, talk to your doctor. As opposed to dietary supplements, trendy health hacks and even many over-the-counter medications, there are robust systems in place to test and monitor the safety and effectiveness of vaccines.
Of all the tips available to improve your health, one recommendation is clear: Even healthy, fit people need recommended vaccines to stay healthy and live well.
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Community Immunity is a newsletter dedicated to vaccines, policy, and public health, offering clear science and meaningful conversations for health professionals, science communicators, policymakers, and anyone who wants to stay informed. This newsletter is free for everyone, and I want it to be a conversation, not just a broadcast. I’d love to hear your feedback, questions, and topic suggestions—let me know what’s on your mind! And if you find this valuable, please help spread the word!
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