Stress and Heat: A Hidden Combination
Long shifts, heavy workloads, noise, pressure, and heat all build up in the nervous system. Over time, this leads to:
- Elevated stress levels
- Constant mental tension
- Trouble relaxing after work
- Poor sleep or waking up tired
- Irritability and burnout
In high-risk environments like construction and mining, this isn’t just “feeling stressed” — it affects reaction time, decision-making, emotional control, and overall safety.
Why Cooling Helps Stress & Anxiety
Cooling the head and neck activates the vagus nerve, the body’s natural calming switch. This helps:
- Reduce heart rate
- Lower physiological stress signals
- Improve emotional regulation
- Bring the body out of “fight-or-flight”
- Create a sense of calm within minutes
Even short sessions help the nervous system reset after intense work.
Cooling for Better Sleep
Stress and heat make it difficult for the brain to power down. When the nervous system stays activated, sleep becomes:
- Shallow
- Interrupted
- Not restorative
A brief CoolHed session before bed helps:
- Lower brain temperature
- Reduce tension in the neck and head
- Activate relaxation pathways
- Improve heart-rate variability (HRV)
- Prepare the body for deeper, more restorative sleep
Wake up clearer, calmer, and more prepared for the next day.
Research
Here are key peer-reviewed studies and systematic reviews on the effects of diaphragmatic breathing for stress, anxiety, and sleep improvement
- Breathing Practices for Stress and Anxiety Reduction: Conceptual Framework of Implementation Guidelines Based on a Systematic Review (2023)
- Effectiveness of diaphragmatic breathing for reducing physiological and psychological stress in adults: a quantitative systematic review (2019)
- Effects of Diaphragmatic Breathing on Health: A Narrative Review (2020)
- Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials (2023)
- Effects of diaphragmatic breathing exercise on sleeping quality, cortisol, cardiovascular autonomic functions, depression, and fatigue: a randomized-controlled trial (2025)
- The effectiveness of diaphragmatic breathing relaxation training for improving sleep quality among nursing staff during the COVID-19 outbreak (2021)
Research on forehead cooling devices (e.g., Ebb Therapeutics) for insomnia (with secondary effects on anxiety/stress):
- A novel forehead temperature-regulating device for insomnia: a randomized clinical trial (2018)
- Transcutaneous Auricular Vagus Nerve Stimulation in Insomnia: A Systematic Review and Meta-Analysis (2025)
- Transcutaneous Auricular Vagus Nerve Stimulation for Chronic Insomnia Disorder: A Randomized Clinical Trial (2024, published late 2024/early 2025)
- Transcutaneous auricular vagus nerve stimulation (taVNS) improves sleep quality in chronic insomnia disorder: A double-blind, randomized, sham-controlled trial (2025)
Discover How CoolHed Protocol Protects and Optimises your Workforce.
CoolHed’s intelligent cooling system supports the toughest workers in the toughest conditions.
Lower heat. Sharper minds. Safer shifts.
Discover How CoolHed Protocol Protects and Optimises your Workforce.
CoolHed’s intelligent cooling system supports the toughest workers in the toughest conditions.
Lower heat. Sharper minds. Safer shifts.