Data-Driven Wellness: When the Numbers Matter — And When They Don’t
High performers use data to make sharper decisions, focus effort, and avoid wasted time.
But over-reliance on numbers without real-world feedback leads to poor choices.
The best results come from blending data with experience, intuition, and honest reflection.
In the world we live in now, everyone has a definition of what "Data" is, so let's start with how I look at "Data" - any piece of information that can be used to make a decision. When we dive a little deeper data typically falls into 2 categories, quantitative and qualitative, and lately in the Health and Wellness space many are leaning entirely on the quantitative side. These are all useful pieces of information, things like Heart Rate Variability (HRV), sleep duration, resting heart rate, calories and macro distribution, body weight, and I could go on but you get the point. The boom of wearables and the continued prevalence of phones has made gathering this information easier than ever and it can be very comforting to look at a single number or metric and make a decision. However the key piece that is missing from all these numbers is CONTEXT which allows you to better understand if that value is in a positive space or towards a more negative direction. Context allows you to better evaluate how your body and mind are responding to the pieces of quantitative data and how they impact you specifically. For example, knowing that you were asleep for 8 hours last night is helpful, but without the feedback of how you felt this morning mentally and physically, it is hard to know if more sleep is needed or if maybe you're a member of the group that doesn't always need 8 hours, if you should push a hard workout or aim to recover.
Let's take a look at another common example of when numbers alone can foster incorrect next steps, tracking calories and macros. For many of my clients (I also do this from time to time) tracking can be a very powerful tool as it helps bring awareness to what exactly and how much food you're consuming. But, when you look to take only this information and make weight management decisions (either losing weight or building muscle) you'll most likely struggle as this problem is way more complex then just a couple of numbers. Our body continues to adapt and without paying attention to the qualitative pieces, consistent progress will be almost impossible to maintain. The great part is that when you become more attuned to the qualitative metrics you can loosen up on your strict adherence to the numbers, which again promotes a more sustainable path. In practice, this looks like keeping track of the following:
how did you feel, including any stomach issues
how was your energy
how was your QUALITY of sleep
how hungry did you feel
what was your activity level
you can add more if you want, but this will be a good start.
As you can imagine, the answers to these questions combined with the calorie and macro numbers allows for a better understanding of not only how well did you fuel your body, but how much fuel your body likely needs.
Now that you're on board with both numbers and context, where do you start? As I've mentioned in other posts the goal is to start small and build momentum. Track a couple metrics of each type for a period, and then look for trends. For example, let's say you want to work on feeling more rested in the morning and believe getting better quality sleep is the place to start. Pick whatever logging tool makes the most sense for you short term (if you like this process you can always change) and pick a couple of each kind of data to start with, something like this:
(Quantitative) Hours of sleep (either from a wearable or an estimation based on when you went to bed and woke up)
(Quantitative) heart rate shortly after you wake up, your resting heart rate is a good data proxy for overall stress levels
(Qualitative) how you feel in the morning
(Qualitative) level of stress (mentally and physically) from your previous day
Starting with these 4 pieces you'll have a great starting point to understand how much sleep you're getting and how much your body needs. Keep this log for a week or two and you'll start to be able to observe some trends and begin to plan better for those days when you're going to NEED more sleep. With a data set small like this, it becomes easier to not only keep track of things but run your own tests to better understand the connections. You can apply a similar methodology across the board to different challenges, but I suggest keeping the amount of things you're varying to a small number such that you can better understand which changes are correlated to which result.
The best decisions come from blending numbers with awareness.
Track what matters. Listen to your body.
Let data inform — not dictate.
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