David Kale

Exploring fitness, health & human performance
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CSCS | MSEd | Alum @hcrossbaseball & @fordhambaseball

[David Kale @davidkale_]

Decision-making is often much easier than we make it. There are usually many good options, but school largely taught us that there is one correct answer so we carry that mindset into life. We waste time stressing over the optimal approach when, in reality, many different paths could lead to valuable outcomes.

Health and fitness is a perfect example. There are endless protocols and formulas that could successfully achieve the same goal. Spending too much time trying to determine which one is “best” can keep you from doing the most important thing: stepping into the arena.

Choose a direction, take action, gather data, and make adjustments based on what you learn. Most people don’t struggle to make a good decision. They struggle to stop searching for the perfect one.

[David Kale @davidkale_]

@coachdhabi Correct

[David Kale @davidkale_]

@JaiAshar Totally. Notifications-wise, I’ve kept calls, texts, navigation, and calendar/reminders. Pretty much everything else I’ve turned off. Has worked great for me so far!

[David Kale @davidkale_]

After trying Whoop, Oura, and Apple Watch, here’s why Apple Watch is my wearable of choice:

With the newest model, I no longer feel like I’m sacrificing health tracking for a smartwatch. It’s now as good as the best wearables in most areas, and even better in some.

Then you get everything else.

Cellular + AirPods lets me leave my phone behind more often. Calls, messages, music, navigation, payments, and workouts - all without carrying another device.

Fast charging makes battery life a non-issue for me, and interchangeable bands make it easy to wear in almost any setting.

That combination of top-tier health tracking and everyday utility is hard to beat.

[David Kale @davidkale_]

@nuvardai Definitely an important caveat to keep in mind. The data will never be perfect and context is crucial. Even with those limitations, years of this data can still be super valuable

[David Kale @davidkale_]

We’re dramatically underestimating the future value of the wearable data we’re collecting today.

AI is getting smarter incredibly fast. As it improves, it will be able to learn more from your health data and generate far deeper insights than it can today.

But better intelligence is only part of it. The more context an AI model has, the better results it can produce.

Years of sleep, activity, heart rate, HRV, and recovery data give AI a deeper understanding of you and your health.

And that health history isn’t something you can go back and collect later.

So choose the wearable you’ll actually keep on. Whether it’s a ring, watch, or band matters much less than wearing it consistently.

Let the data build in the background. Your future self will be very glad you did.

[David Kale @davidkale_]

@coachdhabi Appreciate you coach✊

[David Kale @davidkale_]

Most people dramatically overestimate how much exercise it takes to get fit. A few intelligently designed sessions each week, combined with daily steps, can take you remarkably far. The bigger challenge isn't doing more, it's sticking with a plan long enough for it to work.

[David Kale @davidkale_]

@JaiAshar Agreed. I think more and more people are looking for ways to reduce screen time without giving up the genuinely useful parts of a smartphone. Apple Watch lets me do exactly that.

[David Kale @davidkale_]

Love this point. That’s also why I think the underlying measurements matter more than any company-generated score. Algorithms will change but future AI should be able to account for those changes when looking at long term trends. It also shows how important it is for wearables to keep improving measurement accuracy (I’m stoked about the progress with the new Apple Watch). The history won’t be perfectly clean, but years of imperfect data with the right context should still be far more useful than none at all

[David Kale @davidkale_]

The deeper you get in the health and fitness game, the more you realize how much of it is just relearning the same few lessons. The fundamentals rarely change. We forget them, drift from them, and chase something new. Then eventually come back to what worked all along.

[David Kale @davidkale_]

If I only had 3 days per week to get as fit as possible, here’s exactly how I’d structure my training:

Day 1:
> Power: 5-10 min
> Full-body strength: 45-60 min

Day 2:
> Steady-state cardio: 30-60 min

Day 3:
> Power: 5-10 min
> Full-body strength: 30-45 min
> High-intensity intervals: 10-15 min

Daily:
> 7-10k steps

[David Kale @davidkale_]

The evolution of health tech:

Health Tech 1.0: Tell me what happened
> You slept 6h 22m; HRV was 48

Health Tech 2.0: Tell me why it happened
> Your sleep was likely worse because your environment was too warm

Health Tech 3.0: Help me change what happens next
> Remind me to cool my room before bed and track whether it helped

Health Tech 4.0: Change what happens next for me
> Automatically adjust my bed temperature

[David Kale @davidkale_]

@Brady_H My time has come

[David Kale @davidkale_]

Underrated life hack: shut your mouth

[Dan Go @CoachDanGo]

The biggest cheat code for your health is nasal breathing. Mouth breathing raises heart rate, invites bad bacteria, disrupts sleep, and kills focus. Nasal breathing boosts nitric oxide, calms your nervous system, and improves brain function. The biggest switch you can make is going from mouth breathing to nasal breathing.

[David Kale @davidkale_]

You can work out for an hour every day and still spend most of your life sedentary.

Exercise is important, but so is movement outside of exercise.

Walk, take the stairs, squat, hang, balance, etc. Be creative and move your body in different ways.

A body in motion stays in motion.

[David Kale @davidkale_]

The best way to use a wearable is to stop checking it every day.

Wear it daily. Review trends weekly.

Just like body weight, individual readings are noisy. Averages and trends tell a much better story.

Measure frequently. Interpret slowly.

[David Kale @davidkale_]

Highly underrated reason to use a wearable:

You're building a health history you can't recreate later.

As AI gets smarter, years of sleep, activity, HRV and other health data could become increasingly valuable when combined with labs and medical records.

The models can improve later, but your missing history can't.

[David Kale @davidkale_]

@cremieuxrecueil Especially when performed through large ranges of motion

[David Kale @davidkale_]

Lifting weights doesn’t make you tight.

Research shows resistance training performed through large ranges of motion can improve flexibility, often to a similar degree as dedicated stretching. And you get something stretching alone doesn’t provide: strength through those ranges.

For many people, the best mobility work might just look like strength training through a full range of motion.

[David Kale @davidkale_]

One of the biggest reasons to be optimistic about AI is health.

It can already make sense of lab results, pull together years of medical history, and surface patterns that might otherwise get missed.

Imagine what this looks like 5-10 years from now. The upside is limitless.

[Steve 🤙 @SteveKBark]

Came across this @tferriss clip and if you don’t use AI for health, it’s worth 64 seconds.

Recently my AI skeptical friends have been coming around for this exact reason. And personally, my wife and I have both found previously undetected health opportunities via AI.

I’ve followed Tim for years (his fear setting TED talk changed my approach to life & risk) and his willingness to take on body/health-related topics that aren’t mainstream is a major value add. He isn’t afraid to use himself as the test subject, under proper supervision of course, to help move the needle.