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Research Digest — Not Medical Advice: BodySignals summarises published research for informational purposes. It is not a healthcare provider and does not replace professional medical advice. If you believe you are having a medical emergency, call emergency services immediately. Full disclaimer

27 conditions — evidence-rated

Condition Library

Comprehensive guides for chronic, digestive, mental health, and other conditions — each with evidence-rated treatments, lifestyle factors, and Canadian and US provider context. Every intervention is graded on the A–F evidence scale.

Showing 27 of 27 conditions
Digestive

Yeast overgrowth

Overgrowth of Candida albicans yeast in the gut.

2 interventions2 symptoms
Digestive

Slow transit

Infrequent bowel movements or difficult passage of stools.

3 interventions2 symptoms
Digestive

Autoimmune reaction to gluten

An immune reaction to eating gluten that damages the small intestine lining and prevents nutrient absorption.

1 intervention3 symptoms
Digestive

Chronic inflammation of the digestive tract

Inflammatory bowel disease causing inflammation throughout the digestive tract, with pain, diarrhoea, and weight loss.

3 interventions3 symptoms
Digestive

Inflamed pouches in the colon

Infection or inflammation of pouches (diverticula) in the intestines.

2 interventions2 symptoms
Digestive

Stomach inflammation

Inflammation of the protective lining of the stomach.

2 interventions2 symptoms
Digestive

Chronic acid reflux

Stomach acid frequently flows back into the oesophagus, causing heartburn and potential damage.

3 interventions3 symptoms
Digestive

Imbalanced gut flora

Reduction in microbial diversity with loss of beneficial bacteria and rise in pathogenic bacteria.

3 interventions2 symptoms
Digestive

Reaction to dietary histamine

Accumulation of histamine in the body due to impaired breakdown (DAO enzyme deficiency).

2 interventions3 symptoms
Digestive

Compromised gut barrier

Gaps in the gut lining allow bacteria and toxins into the bloodstream. Medical term: increased intestinal permeability.

2 interventions2 symptoms
Digestive

Functional disorder affecting the large intestine

Common condition causing cramping, abdominal pain, bloating, gas, and diarrhoea or constipation.

4 interventions3 symptoms
Digestive

Inability to digest milk sugar

Deficiency of lactase enzyme leading to digestive symptoms after consuming dairy.

3 interventions3 symptoms
Digestive

Gluten sensitivity without coeliac disease

Coeliac-like symptoms that improve on a gluten-free diet, after coeliac and wheat allergy have been ruled out.

2 interventions3 symptoms
Digestive

Bacteria where they shouldn't be

Excessive bacteria in the small intestine leading to fermentation, gas, and malabsorption.

3 interventions3 symptoms
Digestive

Inflammation of the colon and rectum

Inflammatory bowel disease causing ulcers in the colon and rectum with bleeding and urgency.

3 interventions3 symptoms
Mental Health

Executive function challenges around attention and impulse control

Difficulty with attention, hyperactivity, and impulsivity.

3 interventions5 symptoms
Mental Health

Extreme mood swings between mania and depression

Extreme mood swings including emotional highs (mania) and lows (depression).

3 interventions3 symptoms
Mental Health

Excessive, hard-to-control worry about everyday things

Excessive, uncontrollable worry about everyday issues.

3 interventions5 symptoms
Mental Health

Persistent low mood with loss of interest and energy

Persistent feelings of sadness, loss of interest, and lack of energy.

3 interventions5 symptoms
Mental Health

Unwanted intrusive thoughts paired with ritual behaviours

Uncontrollable, recurring thoughts (obsessions) and behaviours (compulsions).

2 interventions4 symptoms
Mental Health

Traumatic reaction with intrusion, avoidance, and hyperarousal

Reaction to a traumatic event involving flashbacks and avoidance.

3 interventions4 symptoms
Metabolic

Hormonal balance through metabolic health

A hormonal disorder causing enlarged ovaries with cysts. Affects menstruation, fertility, and is linked to insulin resistance.

3 interventions
Metabolic

Reversing insulin resistance

A condition where cells stop responding to insulin, leading to high blood sugar. Often reversible with lifestyle changes.

3 interventions
Cardiovascular

Beyond the numbers

Elevated cholesterol, particularly LDL, increases risk of atherosclerosis. Lifestyle factors have major impact.

3 interventions
Cardiovascular

The silent killer

Chronically high pressure in blood vessels, forcing the heart to work harder.

2 interventions
Pain

Calming the amplified nervous system

A chronic condition characterized by widespread musculoskeletal pain, fatigue, and cognitive issues.

3 interventions
Pain

More than a headache

A neurological disease causing severe throbbing pain, often with nausea and light sensitivity.

2 interventions