17/11/2025
Feel The Warmth CIC has now finished the pilot study for heath and wellbeing for stress and anxiety. This is the blog from Dr Adrian Smales on the results.
Can Gentle Heat Lower Everyday Anxiety and Stress?
What we learned from the FTW VASLAN pilot study
Overview
An 8-week pilot where everyone used a far-infrared (FIR) heat belt showed clear drops in anxiety and stress and better sleep. The scale of improvement was big enough that most people would notice the change in everyday life—think fewer “on edge” moments, more calm, and an easier time winding down at night. While this is an early-stage study (no separate control group), the signals are consistent and encouraging.
Why we ran this study
Anxiety and stress touch almost every part of life—sleep, concentration, relationships, and physical health. Many people want support that’s practical, non-drug, and easy to use alongside any care they already receive. Day-to-day pressures can keep the body stuck in a constant “high alert” state, making it harder to relax and recover.
We explored a gentle heat belt as a simple way to help. The belt delivers far-infrared (FIR) warmth, which feels soothing and can be worn while resting or winding down. Warmth may calm the nervous system, ease muscle tension, and support better sleep—three pillars that can lower feelings of anxiety and reduce perceived stress. Our goal was straightforward: if people use the belt regularly for eight weeks, do their anxiety and stress levels move in the right direction, and do they find the belt comfortable enough to keep using in real life?
How the study worked
• Who took part: Adults from a community cohort—every participant used the belt.
• What we measured:
o Anxiety with the GAD-7 questionnaire (0–21; higher = more anxiety).
o Stress with the PSS-10 questionnaire (0–40; higher = more stress).
o Sleep quality and belt satisfaction each on a 0–10 scale.
• When we checked in: around Week 1 (start), Week 4, and Week 8.
• How we looked at the numbers: Two simple lenses:
1. Over time: Are the averages heading downward week by week?
2. Before vs after: For each person, how did the “end” score compare with the “start” score?
This mix gives both a “big picture trend” and a “what changed for each individual” view—easy to understand, but still careful about missing check-ins.
What changed—and why it matters
Anxiety: from “often on edge” to “mostly OK”
At the beginning, many people were in the moderate range for anxiety—enough to affect sleep, focus, and mood. Over the eight weeks, anxiety scores dropped substantially, with a lot of participants moving toward the minimal range.
What that feels like: fewer spikes of worry, easier evenings, and less mental “buzz” at bedtime. It’s the difference between constantly scanning for problems and feeling like your baseline is calmer.
Stress: a steady, noticeable easing
Stress scores fell clearly and consistently. This wasn’t a small, technical shift—this was the kind of change people feel in daily life: handling queues, emails, and unexpected hassles with a little more headroom. Participants reported feeling less overwhelmed and more able to get on with their day.
Sleep & satisfaction: helpful, reinforcing gains
On average, sleep ratings improved by about two points (on a 0–10 scale). Better sleep is a force multiplier—it improves your mood, your patience, and your ability to cope with stress the next day.
Satisfaction with the belt started good and grew over time. People generally found it comfortable, simple to use, and easy to fit into their routine—on the sofa, reading in bed, or during quiet time.
How big is “big”?
Doctors often use a rule of thumb: a 4–5 point drop on these anxiety/stress scales is big enough that you’ll feel the difference. In this pilot, average improvements were roughly 7–9 points depending on how we looked at the data—well above that “you’ll notice it” threshold.
Put simply: this wasn’t a tiny change that only shows up on graphs. It translated into everyday life—calmer days, easier nights.
Why might gentle FIR heat help?
• Calmer body, calmer mind: Gentle warmth can nudge the body from “fight-or-flight” toward “rest-and-digest,” reducing that wired feeling.
• Less muscle tension: Easing tightness and aches removes a constant background signal that keeps the mind on alert.
• Better sleep: Warmth can help the body prepare for sleep, and better sleep feeds back into lower anxiety and stress the next day.
The pattern we saw—lower stress, lower anxiety, better sleep—matches this mind-body story.
What this means in the real world
If you’re dealing with everyday stress or anxious feelings, gentle FIR heat looks like a practical, low-friction habit you can add to your toolkit. It won’t replace professional care where that’s needed, and it’s not a magic wand. But it can help, it’s easy to stick with, and many people actually enjoy using it—which matters for long-term benefit.
Tip: pair the belt with wind-down habits—dim lights, a book or calm music, and a regular bedtime. Small, consistent steps tend to add up.
References
• FTW VASLAN Study – Initial Statistical Report (2025). Full methods, results, and figures for GAD-7 (anxiety), PSS-10 (perceived stress), sleep, and satisfaction.
Author: Dr Adrian Smales, PhD, MBA, BEng(Hons)
