Becoming Your Own Signal Filter

The Noise Problem

If you’ve ever spent an evening researching a health topic and come away more confused than when you started, you already know the problem I’m about to describe.

The wellness space is drowning in advice. Some of it is excellent. Some of it is marketing dressed up as science. And a staggering amount of it is technically accurate but functionally useless — because it was never meant for you, your body, your schedule, or your life.

Eat more protein. No, eat less protein. Intermittent fasting is transformative. Intermittent fasting is stressful for women. Cardio is essential. Cardio is overrated. Take magnesium. Don’t take magnesium on an empty stomach. Cold plunge every morning. Actually, cold exposure raises cortisol.

Each claim comes with a study, an expert, a testimonial, and a confident headline. And each claim directly contradicts something else you read last week.

This isn’t an information problem. We have more health information available than at any point in human history. It’s a filtering problem. The skill that’s missing — the one almost nobody teaches — is the ability to evaluate a health claim in the context of your own life and decide whether it deserves your attention or your energy.

That skill is what I call becoming your own signal filter.

Why Smart People Get Stuck

The people I work with are not uninformed. They’re often deeply informed — and that’s part of what makes this so frustrating. They’ve read the research. They’ve followed the experts. They’ve tried the protocols. And they’re still unsure what actually applies to them.

This happens because most health advice is built on averages. Clinical trials study populations. Guidelines are written for the general public. Recommendations are designed to be broadly applicable. And broadly applicable, by definition, means not specifically applicable to you.

A study showing that a Mediterranean diet reduces cardiovascular risk in a population of 10,000 people tells you something useful about populations. It tells you very little about whether that specific dietary pattern will work inside your specific life — with your glucose responses, your food preferences, your schedule, your stress load, and your digestive system.

The gap between population-level evidence and individual-level application is enormous. And in that gap, people get lost. They cycle through recommendations, feel like failures when something doesn’t work, and gradually lose trust in their own ability to make good decisions about their health.

The problem isn’t that they lack discipline. The problem is that they lack a framework for deciding what to pay attention to in the first place.

The Cost of Not Filtering

When you don’t have a reliable way to evaluate health information, several things happen — none of them helpful.

• You accumulate
  Every new piece of advice gets added to the pile. You end up with a mental to-do list of health actions so long that the sheer volume paralyzes you. Should you be taking that supplement? Should you be cutting that food? Should you switch your exercise routine? Each question sits there, unresolved, draining a little more of your cognitive bandwidth every day.
• You oscillate
  Without a filter, you swing between strategies. You try keto for three weeks, then read something about the importance of whole grains, then hear a podcast about intuitive eating, then see a post about the carnivore diet. Each pivot feels like starting over. None of them gets enough time or consistency to actually tell you anything useful.
• You outsource your judgment
  When you can’t figure out what applies to you, the temptation is to hand over the decision to whoever sounds most confident — the influencer, the podcast host, the friend who swears by their new protocol. But their confidence is about their experience, not yours. And following someone else’s conviction as a substitute for your own discernment is a pattern that leads to dependency, not clarity.
• You lose trust in yourself
  This is the deepest cost. After enough cycles of trying, doubting, switching, and failing, the inner narrative shifts from “I’m figuring this out” to “I can’t figure this out.” And once that story takes hold, it’s hard to override — even when you have perfectly good judgment sitting right there, waiting to be used.

Five Questions That Change the Conversation

You don’t need a medical degree to evaluate health advice. You need a small, reliable set of questions you can run any claim through before deciding whether to act on it.

Here are the five I use — both for myself and in my work with clients.

01: Is this relevant to my specific situation?

Not “is this interesting” or “is this evidence-based” but “does it apply to me, right now, given my health picture, my goals, and my current life”? A recommendation to do high-intensity interval training three times a week may be well-supported by research. But if you’re chronically underslept and your cortisol is already elevated, adding high-intensity stress to your system isn’t a signal worth following. It’s noise.

02: What is this claim actually based on?

Is it a peer-reviewed study? A single anecdote? A marketing campaign? A well-meaning friend’s experience? This isn’t about being cynical, it’s about calibrating your confidence in the information. A randomized controlled trial gives you a different level of evidence than an Instagram reel. Both might contain something useful. But knowing the source helps you decide how much weight to give it.

03: Does this fit into my current system or does it blow it up?

One of the most overlooked questions. Every new health recommendation exists in relation to everything you’re already doing. If adding this thing means disrupting a routine that’s working, that trade-off matters. If it can be integrated without significant friction, that’s a different calculation. The best health changes are the ones your life can absorb without collapsing something else.

04: What would it cost me to try this and what would it cost me to ignore it?

This is a risk-reward question, and it cuts both ways. Sometimes the cost of trying something is minimal: swapping your afternoon snack, adjusting your bedtime by thirty minutes, adding a ten-minute walk after dinner. Low cost, potentially high return. Worth testing. Other times, the cost is significant: an expensive supplement, a restrictive elimination diet, a protocol that demands two hours a day. High cost, uncertain return. Worth pausing on.

05: Can I test this in a way that gives me useful feedback?

This is where discernment becomes practical. Instead of committing to a new approach wholesale, can you run a small, time-limited experiment? Try it for two weeks. Track one or two things that would tell you whether it’s working — energy, sleep quality, how you feel after meals, whether your afternoon slump shifts. If there’s no way to test it or measure its effect, that tells you something too.

From Consumer to Designer

These five questions do something subtle but important: they shift your relationship to health information from passive consumption to active evaluation.

You stop being someone who absorbs every recommendation and hopes for the best. You become someone who filters, tests, and decides based on your own body, your own context, and your own experience.

This is not about rejecting expertise. I’m not suggesting you ignore your physician or dismiss the research. I’m suggesting you learn to sit with health information the way a designer sits with a brief — asking: what’s useful here, what applies to my situation, and how does this fit into the larger system I’m building?

Because that’s what a healthy lifestyle is. It’s a system. And every system needs a filter, something that lets the right inputs in and keeps the noise out.

The wellness world will keep producing an endless stream of advice, protocols, and bold claims. That’s not going to change. What can change is your ability to meet that stream with clarity instead of confusion. With discernment instead of overwhelm. With the quiet confidence that comes from knowing you have a reliable way to decide what deserves your attention and what doesn’t.

You already have good judgment. You just need a framework to use it.