Exercise Trumps Genes for Longevity

By now I’m probably sounding like a broken record about how important exercise is to all aspects of your life, but here I go again…

Although this is not specifically about cancer, an article recently published in the Journal of Aging and Physical Activity (Posis et al., 2022) scored another point for the benefits of maintaining an active lifestyle.

This study was conducted at the Herbert Wertheim School of Public Health and Human Longevity Science (University of California, San Diego), where the researchers examined the effect of physical activity/sedentary time on longevity in women. The 5400+ study participants spanned the entire range of genetic predispositions for longer or shorter lives. You can read a synopsis of the research here.

When in doubt, keep moving.

The results of this prospective study (2012-2020), while not surprising in the grand scheme of things, can be considered a wake-up call.

Regardless of their genetic predisposition, women who engaged in higher levels of activity had a lower mortality risk and those who were more sedentary had a higher risk. This is important, because it’s tempting to think that if your family members are long-lived, you will be too. However, your own activity levels do matter.

In addition, being physically active was effective in extending the lifespans even of those women whose genetics suggested a shorter life.

This can be considered promising news: you do have some control over your lifespan. Even when you’ve been dealt what may seem like a losing hand in terms of longevity or disease, providing your body with the supportive behaviors that it needs and deserves still makes things better.

It’s easy to forget this when we focus on the negatives in life. And while we do need to acknowledge our hardships and allow ourselves time to grieve for our losses, making choices that benefit our bodies and minds is a sign of respect for ourselves.

So go ahead, soak those tootsies…then get back outside for a walk. And don’t stop.

Unlike a glass of wine or a rich dessert, commonly considered an “indulgence”, self-care in the form of moving ourselves, step by step, day by day, closer to a healthier lifestyle is the kindest, most loving indulgent act you can ever do for yourself.

What one little thing can you do today that you didn’t offer to yourself yesterday that will move the needle further towards a more active life?

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References:

“Physical Activity May Have a Stronger Role than Genes in Longevity” by Yadira Galindo, UC San Diego News Center, August 24, 2022, https://ucsdnews.ucsd.edu/pressrelease/physical-activity-may-have-a-stronger-role-than-genes-in-longevity.

Posis et al., (2022) Associations of Accelerometer-Measured Physical Activity and Sedentary Time With All-Cause Mortality by Genetic Predisposition for Longevity, J Aging Phys Act, https://doi.org/10.1123/japa.2022-0067.

Victims of Our Own Success: Premature Aging in Cancer Patients and What You Can Do About It

So this isn’t the kind of news you want to see. But there’s still hope…

A scientific journal article from 2017 (Cupit-Link et al., 2017, ESMO Open) describes the toll that cancer treatments can take on the patients subjected to them.

After being told you have cancer and deciding to proceed with the treatments that will offer you the best chance of survival…it’s disheartening to learn that many of those same treatments can accelerate aging, causing damage to your DNA, heart disease, hearing loss, cataracts, liver and kidney diseases, brittle bones, lowered immune response and other cancers (!) among other issues, depending on the type of cancer and treatment (see WebMD article).

The treatments that can save our lives from cancer may hasten our demise from age-related factors.

This is a problem resulting, ironically, from the success of treatments and extended lifespan of cancer survivors. Back when cancer was deadly with a low survival rate, no one was too concerned about the state in which survivors were left in; simply surviving the cancer was enough. Now that people are beating their cancers at greater rates, quality of life has become a much bigger issue.

While the most striking detriments are seen in childhood cancer survivors, accelerated aging occurs in most former cancer patients.

Doctors and researchers are taking note. At the time of this scientific article’s publishing in Dec 2017, there was already discussion on how to “de-escalate” cancer treatments as a way to decrease the amount of cellular damage to patients.

On a personal level, I chose an effective drug for my HER2+ breast cancer (Herceptin) over a more effective drug (Perjeta) that carried a risk of greater cardiotoxicity. I made that decision because although I was terrified of cancer, I was also afraid of what lasting effects the drug would have on me once the treatments were over.

Cancer treatments are strong but healthy living can help mitigate their negative effects.

But even if you didn’t have the opportunity to make such a choice, there’s still something that you can do. The authors of that 2017 paper noted that cancer survivors can take back some control over their health by adopting or continuing those healthy lifestyle habits that should sound familiar by now: not smoking, limiting alcohol, exercising regularly and eating a healthful diet.

To that, I would also add, managing your stress levels, the importance of which has been demonstrated on a cellular level, and getting optimal amounts of sleep.

Improving longevity is a hot field for research as scientists work to determine what aspects of one’s lifestyle show the greatest promise in keeping the body young. This topic is complex and new data is coming in on a regular basis, so I won’t delve into details here, but it stands to reason that being sedentary and eating a high-sugar, high-processed diet is not going to do you any favors.

Just as cancer treatments may have a negative effect on overall health, you can win back some lost ground by making healthy, informed decisions on diet and exercise. No one wants to limit their cancer treatment options, so this is one form of insurance that you can give yourself. No matter what else happens, a healthy lifestyle will benefit your quality of life. And that is an improvement that is yours to keep.