Your body, explained
Peer-reviewed research on symptoms, conditions, and interventions — summarised in plain language for Canadian and US readers.
Explore by Body Area
Select an area to see related symptoms
Head & Neck
Symptoms affecting the head, eyes, ears, nose, throat, and neck.
Chest & Lungs
Symptoms involving the heart, lungs, ribs, and upper torso.
Abdomen & Digestion
Issues related to the stomach, intestines, liver, and pelvic area.
Back & Spine
Pain or stiffness in the upper or lower back and spine.
Arms & Legs
Symptoms in muscles, joints, and extremities.
Skin
Rashes, bumps, changes in color or texture.
General / Whole Body
Systemic symptoms like fever, fatigue, or weight changes.
Common Symptoms
Frequently searched conditions
Chest Pain
EmergencyDiscomfort in the chest area, ranging from sharp stabs to dull aching or pressure.
Medical GuidelinesRating: AHeadache
Pain in any region of the head, appearing as sharp, throbbing, or dull.
Medical GuidelinesRating: ALower Back Pain
Self CarePain, stiffness, or tension in the lumbar region.
Medical GuidelinesRating: AAbdominal Pain
Pain between the chest and groin, "stomach ache".
Medical GuidelinesRating: BShortness of Breath (Dyspnea)
EmergencyFeeling unable to get enough air; tightness in chest.
Medical GuidelinesRating: AFatigue
Unrelenting exhaustion not relieved by rest.
Medical GuidelinesRating: BFeatured Conditions
A sample from our full library of evidence-rated conditions.
Irritable Bowel Syndrome (IBS)
AFunctional disorder affecting the large intestine
Common condition causing cramping, abdominal pain, bloating, gas, and diarrhoea or constipation.
Major Depressive Disorder
BPersistent low mood with loss of interest and energy
Persistent feelings of sadness, loss of interest, and lack of energy.
Type 2 Diabetes
AReversing insulin resistance
A condition where cells stop responding to insulin, leading to high blood sugar. Often reversible with lifestyle changes.
Migraine
CMore than a headache
A neurological disease causing severe throbbing pain, often with nausea and light sensitivity.
Hypertension
CThe silent killer
Chronically high pressure in blood vessels, forcing the heart to work harder.
ADHD (Adult)
BExecutive function challenges around attention and impulse control
Difficulty with attention, hyperactivity, and impulsivity.
Explore by topic
Deep guides on sleep, movement, and ADHD systems.
Sleep
20 evidence-rated interventions for falling asleep, staying asleep, and sleeping deeper.
ExploreMovement
Phased rehabilitation programs for back, knee, and shoulder pain — physiotherapist-validated.
ExploreADHD Systems
18 tactical systems + 6 recommended tools for ADHD brains, rated by difficulty and impact.
ExploreFinding the right kind of help
Psychiatrist, psychologist, social worker, counsellor — the differences matter and the wrong fit costs time and money. We break down what each provider does, what they can prescribe, and which Canadian and US health plans cover them.
Browse providersHow we rate everything
Every claim, treatment, and intervention is graded on an A–F evidence scale.
Strong: meta-analyses, RCTs, clinical guidelines
Good: well-designed studies, systematic reviews
Moderate: cohort or case-control studies
Limited: case series, expert opinion
Poor or no evidence: anecdote only
Research digest — not medical advice
Body Signals summarises published, peer-reviewed research for informational purposes. It is not a healthcare provider and does not replace professional medical advice, diagnosis, or treatment. If you think you are having a medical emergency, call emergency services immediately.