The Evidence Hub
Browse all research, quick guides, and case studies across every pillar. Every item links back to a peer-reviewed source.
Not sure where to start? Follow a guided reading path.
Removing the Adenoids for Chronic Nasal Symptoms (Cochrane Review)
The adenoids — a pad of tissue at the back of the nose — are a frequent culprit when a child's nose stays blocked or runs for months on end. Surgically removing them is one of the…
Does Removing Tonsils and Adenoids Improve a Child's Posture?
Adenotonsillectomy — removing the adenoids and tonsils — is a common way to clear an obstructed child's airway. Its effects on the nasal space and jaw are well documented. This stu…
Blocked Airways and Crooked Bites: The Connection in Mouth-Breathing Children
This study did something most don't: it put ENT doctors and orthodontists in the same room, examining the same children. Of 356 mouth-breathing children referred in, 221 met the cr…
Sleep Apnoea and the Heart: A Large Randomized Trial
Obstructive sleep apnoea has long been linked to a higher risk of heart attacks and strokes, but a link is not proof that treating the apnoea helps. This large multicentre randomiz…
The Worse the Sleep Apnoea, the More the Head Tilts Forward
It's one thing to show that people with sleep apnoea hold their heads differently; it's another to show the posture gets worse as the apnoea does. This study set out to test exactl…
Can Widening the Palate Help Childhood Bedwetting?
Bedwetting is usually treated as a bladder or behavioural issue. This systematic review investigated a more surprising link: whether rapid maxillary expansion — an orthodontic proc…
How Palatal Expansion Reshapes the Nasal Airway (Airflow Modelling)
Rapid maxillary expansion is an orthodontic treatment that gradually widens the upper jaw and the palate beneath the nose. We know it widens bone, but this study asked a harder que…
Forward Head Posture, Breathing, and Exercise Capacity in Children
This controlled study brought together three things that are usually studied separately: posture, breathing mechanics, and physical fitness. Working with children aged 8 to 12 who…
Neck Muscle Strain in Mouth-Breathing Children (EMG Study)
When the nose is blocked, breathing stops being effortless. To pull in enough air, a child extends the head forward and presses extra muscles into service. This study used electrom…
Posture, Breathing, and Quality of Life in Mouth-Breathing Children
Researchers compared school-aged children who habitually breathe through their mouths with those who breathe through their noses, measuring chest expansion, breathing pattern, the…
The Nose as an Air Conditioner: Why How You Breathe Matters
This review draws on airflow measurements and computer simulations of the upper airway to describe a job the nose does that most people never think about: conditioning the air befo…
Why the Nose Makes Nitric Oxide — and the Mouth Doesn't
When researchers discovered that nitric oxide was an important signalling molecule — a finding that won a Nobel Prize in 1998 — attention turned to where the body makes it. One of…