I’ve been watching the vaccination data from Massachusetts and Pennsylvania, and whilst everyone focuses on herd immunity thresholds, I keep thinking about what happens in the homes of the families caught in these gaps.
Because here’s what the public health reports don’t tell you: public health crises always create sleep crises.
The Anxiety Spiral Nobody’s Tracking
When 163 kindergarten classes in Massachusetts fall short of measles herd immunity, that’s not just an epidemiological concern. That’s 163 classrooms full of parents now carrying an additional layer of worry.
Some of those parents made deliberate choices about vaccination. Others followed medical advice but now find themselves in schools where exemption rates are climbing.
All of them are now managing uncertainty about their children’s health.
And uncertainty is one of the most reliable sleep disruptors we have.
What Happens When the News Cycle Meets Bedtime
I work with people whose insomnia started or worsened during periods of heightened health anxiety. The pattern is remarkably consistent.
You lie down. Your brain, which has spent the day processing information about disease transmission and outbreak statistics, doesn’t simply switch off. It starts running scenarios.
What if my child gets ill? What if I made the wrong choice? What if the school sends another email tomorrow?
This is your arousal system doing exactly what it’s designed to do: scanning for threats, planning responses, trying to keep you safe.
The problem is that you can’t sleep when your brain thinks you’re under threat.
The Striving Makes It Worse
Here’s where it gets particularly difficult for the type of person who reads public health data carefully and makes informed decisions about their family’s wellbeing.
You’re someone who solves problems. You research. You plan. You take action.
These are excellent qualities for navigating a public health landscape where religious exemptions have risen 23% in a single year and seven of 14 counties in Massachusetts have fallen short of the 95% threshold.
But when you apply that same problem-solving intensity to your sleep, it backfires.
You start tracking your sleep more carefully. You try supplements. You adjust your evening routine. You research blue light filters and bedroom temperature and magnesium levels.
All of that effort signals to your brain that sleep is something you need to work at, something that requires vigilance and control.
Which makes sleep harder, not easier.
What Actually Helps
I’m not suggesting you ignore genuine public health concerns. The data matters. Vaccination coverage among kindergartners has dropped from 95.2% to 92.5% over five years, leaving approximately 286,000 children at increased risk.
That’s worth paying attention to.
But there’s a difference between being informed and being consumed.
If health anxiety is disrupting your sleep, the solution isn’t to try harder to sleep. It’s to change your relationship with both the anxiety and the sleeplessness.
Your brain isn’t malfunctioning when it keeps you awake during uncertain times. It’s responding exactly as it should to perceived threat.
The work is in helping your brain recognise that whilst the situation may be uncomfortable, you’re not in immediate danger. That you can be appropriately concerned about public health whilst also stepping back from the need to control every variable, including your sleep.
The Broader Pattern
This isn’t just about measles outbreaks or vaccination debates. Every public health crisis brings a wave of sleep disruption that rarely makes it into the official data.
The parents checking their children’s temperature multiple times per night. The healthcare workers whose shifts have intensified. The people whose baseline anxiety has tipped into something that follows them to bed.
If that’s you, know that you’re not alone in this. And you’re not powerless.
You can live a full, engaged life whilst working on your sleep. You don’t have to wait for the public health landscape to settle before you address the insomnia.
The evidence-based approaches that help with chronic insomnia work regardless of what triggered it initially. They work even whilst you’re still navigating uncertainty in other areas of your life.
Because the goal isn’t to eliminate all sources of stress before you can sleep well. The goal is to build resilience in how you respond to stress, including the very real stresses of living through times when herd immunity weakens and outbreak risks rise.
That resilience serves you well beyond sleep. It changes how you move through uncertain times altogether.
