The Hidden Benefits of Exercise
Welcome to this week's edition of Public Health without Politics.
In this issue, we look at new research on fitness trends—from weighted vests and dance workouts to stretching, sleep, and the power of supportive partners—plus a surprising link between lithium and Alzheimer’s prevention.
We also explore the idea of living a “psychologically rich life” and revisit the many ways exercise strengthens both body and mind.
Trending in Health this Week
Weighted Vests & Fitness: Research doesn’t support the claim that weighted vests build muscle or strengthen bones—but they may boost calorie burn and cardio, so if they motivate you to move more, they’re still worth a try.
Partner Power: A supportive partner can boost your fitness goals, while a negative one can hold you back.
Exercise and Women’s Health: New research indicates women may reap greater health rewards from exercise.
Dance for Fat Loss: Studies show regular dance workouts can burn fat and shrink waistlines more effectively than traditional exercise.
Stretching Basics: Experts say you should stretch consistently—ideally 2–3 times per week, though daily works even better—to maintain mobility and support overall health.
Catch those Zzzs: Sleep is just as important as diet and exercise for your health.
Lithium & Alzheimer’s Prevention: Harvard researchers found that brain lithium levels drop by up to 60%, often years before Alzheimer's symptoms appear—and restoring lithium (in mouse studies) reversed memory loss and other related changes.
The Third Path to a Good Life
Psychologists say a truly full life isn’t just about being happy or having purpose—it’s also about filling it with rich and interesting experiences.
Key Points:
There’s a “third path” to a good life called psychological richness, focused on curiosity and new experiences.
It may not always feel fun or meaningful, but it leaves you with growth, stories, and the sense of “what a journey.”
You can build it by trying new things (even if they feel uncomfortable), saying yes more often, making time for play, and recording your adventures.
Reminder: The Many Benefits of Exercise
I never tire of highlighting just how much exercise can help you in your life. Exercise gives you instant boosts in mood, brain power, and sleep—and over time, it lowers your risk for serious diseases and helps you stay strong and independent.
Exercise Can Help With:
Managing weight: Regular movement helps you burn calories and keep weight under control. Even small amounts make a difference, though more activity may be needed to lose or maintain weight.
Reducing disease: Physical activity lowers your chances of heart disease, stroke, type 2 diabetes, and some cancers, while also improving blood pressure and cholesterol.
Building bones and muscles: Exercise strengthens your body, protects bone density, and makes everyday tasks easier.
Boosting brain health: Staying active sharpens thinking, supports memory, and reduces the risk of depression and anxiety as you age.
Supporting immunity and longevity: Regular activity helps protect against infections like the flu and is linked to living a longer, healthier life.
Inspirational Quote
“For who is there who, shooting all day, will not sometimes hit the mark?”
—Cicero
Have a great week,
—Richard