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ANOTHER REASON WHY YOU SHOULD EXERCISE

Criticize Donald Trump all you want, but the stock market keeps breaking all-time highs.

  • Yesterday the Dow Jones Industrial Average rose 875 points, or 1.73%, to 51,562.  Well, actually, the Dow dropped today.  But Monday?
  • Why the stock market is doing so well is kind of a mystery.
    • There are no sure signs of greater peace in Iran and Lebanon.
    • Initial jobless claims unexpectedly rose 6.1%, first quarter productivity was revised sharply lower and corporate layoffs jumped 11% in May to 97,000. 40% coming from AI expansion. 
  • But I did ask Google AI, did the stock market rise when Donald Trump was president from 2016 to 2020?
True, the stock market experienced significant growth during the 2016 to 2020 timeframe of the Donald Trump administration. During his first full term from January 2017 to January 2021, the S&P 500 generated a total return of over (67%). [1, 2]
  • I further inquired about his current term.
Since the 2024 presidential election, the U.S. stock market has experienced significant volatility but ultimately generated strong overall returns, with the benchmark S&P 500 climbing over 33% from the post-election period through early June 2026. [1]
  • About his claim to have created the greatest stock market in history, here is one true story according to Google AI:
During Obama's two
terms, the S&P 500 grew roughly 189%. In contrast, the S&P 500 rose by about 45.7% during Donald Trump's first term. Because President Obama served twice as long, total market growth was higher during his two terms than during Trump's first term. [1, 2, 3, 4]

On to my topic of the day, by now you must know that a sedentary life is bad for you.  The simple solution is more exercise.  But you know that.

Imagine a monitoring system on 2,000 patients: [1]
  • Usual Care Group: 1,000 patients. 10 people pass away. (Mortality rate = 1%)
  • Risk Group: 1,000 patients. 6.5 people pass away. (Mortality rate = 0.65%)
The mortality difference is 1% - 0.65% = 0.35%.
  • The Mayo Clinic provides seven benefits of exercise.
    • Controls weight.  In other words, you burn calories by moving about.
    • Combats health conditions and diseases. Which ones?
      • Stroke.
      • Metabolic syndrome.  
        • What is this?  A cluster of biochemical and physiological risk factors that increase your chances of developing cadiovascular disease, stroke and type-2 diabetes.
        • Comes when you have at least three of these risk factors.
          • Abdominal obesity.
          • High blood pressure
          • High-fasting blood sugar.
          • High triglycerides.
          • High low density lipoprotein and low high density lipoprotein.
      • High blood pressure.
      • Type 2 diabetes.
      • Depression.
      • Anxiety.
      • Arthritis.
      • Falls.
    • Improves mood.
    • Boosts energy.
    • Promotes better sleep.
    • Puts the spark back into your sex life.
    • Can be fun and social.
Last week I reported that cardiovascular diseases (which account for one-third of all deaths) are on the verge of cure.  Further, the American Heart Association says that 80% of these deaths are actually preventable.  However, that same posting reporting on good news about heart diseases is not promising for cancer, which is #2 and causes 17% of all deaths.  So what follows is the best available option to combat cancer, and only very recently made public relative to what medicine does to those contracting this disease.

In other words that other reason why you should exercise.  I just read this in Scientific American.
  • “The thinking in the medical community was that you need biomedical interventions—surgery, radiation therapy, drugs—to treat cancer,” says Kerry Courneya, a professor of kinesiology at the University of Alberta, who studies physical activity and cancer.
  • Amazingly enough, that thinking is changing.  There is now growing evidence that exercise lengthens survival times and lowers recurrence risk for several types of cancer.
  • Says Courneya:
Exercise treats cancer as well as, if not better than, some of the current drugs that we’re offering our patients.

    • He led the first large randomized, controlled trial of 800 stages 2 and 3 colon cancer patients of the effects of workouts on cancer outcome.
    • In a 10-year follow-up period, these people had a 28% lower risk of cancer recurrence than similar patients who only received educational material, but who were not monitored.
  • A 2025 longitudinal study of more than 90,000 cancer survivors in the U.S. found that people lived longer if they engaged in moderate to vigorous physical activity after their diagnosis.
    • Worked for 10 different kinds of cancer:  breast, prostate, colon, lung, oral, endometrial, respiratory, rectal, bladder and kidney.
    • Even small amounts of exercise made a difference.
    • But 150 to 300 minutes a week of moderate-intensity activity, such as brisk walking, was the most effective.
    • Or, another way of looking at this is to walk 3 miles/day.
      • I now regularly walk in my building hallway, which is covered with a carpet and has handrails.
      • Thus, I can reduce falls, and if I trip, the ground is softer.
      • Plus, no mongrel dogs, uneven pavement, crossing cars or dangerous homeless vagrants.
      • I found that one mile takes me 25 minutes.  It's hard to keep walking for that length of time.  So I now only walk half a mile, six times per day, which is tolerable.  I also listen to music, and walk to the beat when possible.  Actually, that is the intent.  Doesn't happen too often, but I'm building up to the optimal.
      • The other benefit is that my blood pressure goes up when I spend too much time on my computer or just watch TV.  Each 12.5 minute walk tends to keep my blood pressure closer too normal.  Plus, I'm sure I'm burning calories to maintain my weight, allowing for more snacks.
      • I don't walk on Sundays.  Need to rest my aging body once a week.
    • That report also indicated that there was a modest additional benefit with higher levels of activity.  But I think this is maybe dangerous for anyone over the age of 85.
  • What does exercise do?
    • Reduces overall inflammation.
    • Makes it easier for the hormone insulin to bind to cells.
    • The protein myokine is released by muscle tissue.
    • Workouts also seem to mobilize parts of the immune system that keep cancer in check.  Exercise patients had more T cells and natural killer cells.
    • Higher heartbeat stimulates the immune system.

  • Oh, maybe most important:
In a 2025 prospective cohort study of more than 85,000 adults in the United Kingdom, researchers at the National Institutes of Health (NIH) and University of Oxford found that individuals who engaged in light- and moderate-to-vigorous-intensity daily physical activity had a lower risk of cancer than individuals who were more sedentary.

Thus, exercising can also PREVENT cancer!

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