Your watch and aging
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Arnold Schwarzenegger <[email protected]>
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Arnold's Pump Club welcomes subscribers to their daily email, aiming to make their lives healthier, happier, and less stressful. They discuss the potential of smartwatches to track aging, citing a study that links wearable data to biological aging markers. The club emphasizes using wearables to encourage positive habits, rather than overthinking aging scores.
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Do Walnuts Boost Serotonin and Mood?
A new trial found walnuts improved mood scores. But the serotonin in walnuts can’t reach your brain. Here’s what’s really going on.
Welcome to the positive corner of the internet. We’re here to make your life healthier, happier, and less stressful. At the bottom of each email, we explain our editorial process, stance on AI, and partnership standards.
If you were forwarded this message, you can get the free daily email here.
Today’s Health Upgrade
Can your wearable tell you how fast you’re aging?
Fact or fiction: light weight training
The real reason walnuts might boost your mood
On Our Radar
Can Your Smartwatch Tell How Fast You’re Aging?
Your watch already grades your sleep and reminds you when you’ve barely moved. Now, researchers are exploring whether those numbers might reveal how fast you’re aging.
Before you give your wrist another reason to judge you, there’s a catch.
Right now, your watch isn’t a longevity clock. But if it measures your movement, heart rate, and sleep, it can pick up behaviors associated with better aging.
Researchers compared Garmin smartwatch readings with DunedinPACE, a blood test that uses chemical markers on DNA to estimate the pace of biological aging.
People who walked more, had lower resting heart rates, and slept with fewer interruptions tended to score as slower agers on a blood test.
However, the study was just a snapshot of data. The researchers didn’t have people change their habits and then measure whether aging slowed. So it’s possible (and honestly, likely) that people who are already healthier simply find it easier to move more and sleep better.
Most importantly, whether it’s a watch or any other technology, an aging score isn’t the same as tracking who develops disease or lives longer.
We find wearables helpful as long as they help you take action, not overthink and get stuck.
For example, use the numbers to pick a habit you can improve. If your steps are low, try adding 500 to 1,000 steps per day.
Walking is a good place to start because the evidence extends beyond aging tests. A meta-analysis of 15 studies linked more daily steps with lower mortality risk, with the biggest gains at the low end. The benefits leveled off around 6,000 to 8,000 steps for adults over 60 and 8,000 to 10,000 for those under 60.
Together With Sundays For Dogs
Your Dog Deserves the Best
Arnold’s love for animals is no secret. From dogs to horses and even a pig named Schnelly Schwarzenegger, his home is full of beloved companions.
And just like with his own diet, Arnold believes animals deserve the best food to fuel their health (though he’s been known to sneak his pets an oatmeal cookie or two).
That’s why Arnold’s Pump Club spent two years testing different options to find the ultimate dog food for animal lovers. After all, your pup deserves food as good as yours.
Sundays for Dogs won with the perfect combination of health and convenience.
Other dog foods force you to choose. Cheap kibble? Easy, but it’s full of fillers and lacks nutrients. Fresh meals? Nutritious, but it means freezing, thawing, and cooking.
Sundays For Dogs does it all, with air-dried, human-grade ingredients that are shelf-stable and ready to pour. It stood out for:
Superior Nutrition: Sundays beats traditional kibble 39-0 in a third-party taste test, featuring recipes with short lists of meats, fruits, and veggies you’d recognize.
Being Easy to Serve: No fridge, no prep, no cleanup. Just scoop it into a bowl and watch your dog devour it.
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