Articles santé fiables

Gastroenteritis

Often called the 'stomach flu,' gastroenteritis is usually viral, highly contagious, and resolves on its own — the main risk to manage is dehydration, not the infection itself.

COVID-19

COVID-19 today looks different than it did in 2020 — for most vaccinated, healthy people it's a manageable illness, but knowing current symptoms, contagious periods, and risk factors still matters.

RSV (Respiratory Syncytial Virus)

RSV causes mild cold-like symptoms in most people but can be genuinely serious for infants and older adults — here's how to recognize the difference.

Pneumonia

Pneumonia can range from a manageable illness treated at home to a genuine medical emergency, especially for young children, older adults, and people with weakened immune systems.

Bronchitis

A lingering cough after a cold is often acute bronchitis — usually viral, not needing antibiotics, but sometimes confused with pneumonia when symptoms are severe.

Ear Infection

Ear infections are especially common in young children and usually improve within a few days — here's what causes them and when antibiotics or a doctor's visit are actually needed.

Sinusitis

Facial pressure, thick nasal discharge, and a cold that won't quit are the hallmarks of sinusitis — here's how to tell it apart from a lingering cold and what actually helps.

Tonsillitis

Tonsillitis causes a sore throat plus visibly swollen, often white-coated tonsils — usually viral, but frequent recurrence can raise the question of removing the tonsils altogether.

Sore Throat

Most sore throats are caused by common viruses and clear up on their own — here's how to tell a viral sore throat from one that needs a doctor's visit, and whether it's contagious.

Common Cold

The common cold is the most frequent human illness, usually mild and self-limited — here's what to expect, how to feel better faster, and when it might be something more.

Influenza (Flu)

The flu comes on faster and hits harder than a common cold, and can be genuinely dangerous for some groups — here's how to recognize it, treat it, and know when it needs medical attention.

Rythme cardiaque rapide : causes, symptômes et quand consulter

Un cœur qui bat vite est souvent une réaction normale à l'effort, au stress ou à la caféine — mais une tachycardie persistante ou inexpliquée au repos peut nécessiter une évaluation médicale. Ce guide explique les causes, les symptômes, la différence avec les palpitations, et quand s'inquiéter.

Shortness of Breath: Causes

Shortness of breath ranges from an expected response to exertion to a sign of a serious heart or lung condition — here's how the causes differ and when it's an emergency.

Causes of Heart Palpitations

That fluttering, pounding, or skipped-beat feeling is usually harmless and tied to everyday triggers — but a few accompanying signs mean it's worth getting checked.

Douleur thoracique : causes, symptômes, signes d'alerte et quand consulter

La douleur thoracique a de nombreuses causes possibles, du bénin au potentiellement mortel. Voici comment aborder ses différents schémas — en respirant, en mangeant, en bougeant — et les signes d'alerte qui imposent une aide urgente.

Symptômes de l'infarctus : signes d'alerte, que faire et quand appeler les urgences

Un infarctus suspecté est une urgence. Apprenez les signes d'alerte, y compris les moins évidents, et que faire en attendant les secours.

Symptoms of High Cholesterol

High cholesterol is almost always symptomless — which is exactly why testing, not how you feel, is how it's found. Here's what rare visible signs can look like.

How to Lower Cholesterol

Diet and lifestyle changes can meaningfully improve cholesterol levels — here's what has the strongest evidence behind it.

Triglycerides: Normal Range and Causes of High Levels

Triglycerides are a different type of blood fat from cholesterol, but they're checked together — here's what a normal level looks like and what raises it.

Cholestérol HDL : taux normal, HDL bas ou élevé, et ce que signifie votre résultat

Le HDL est souvent appelé « bon » cholestérol, mais ce n'est pas aussi simple que « plus il est élevé, mieux c'est » — voici ce que signifie réellement un taux normal.