Articles santé fiables

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.

LDL Cholesterol: Normal Range

LDL cholesterol is the type most directly linked to artery plaque buildup — here's what counts as a healthy level and why targets vary by individual risk.

Taux de cholestérol normal : LDL, HDL et triglycérides

Un bilan lipidique donne plusieurs chiffres à la fois : voici les repères généraux pour le cholestérol total, le LDL, le HDL et les triglycérides, et pourquoi l'objectif personnel peut différer.

Cholestérol : plages normales, LDL, HDL, triglycérides et quand consulter

Le cholestérol n'est pas un seul chiffre. Voici les plages normales du LDL, du HDL, des triglycérides et du non-HDL, ce que signifient réellement des résultats élevés ou bas, et quand consulter un médecin.

Vitamin D Toxicity: Can You Take Too Much?

Vitamin D toxicity is rare but real, almost always caused by long-term high-dose supplementation rather than sun or food — here's what to know.

Vitamin D and Calcium: How They Work Together for Bone Health

Vitamin D and calcium work as a team for bone health — without enough vitamin D, the body can't use calcium effectively, no matter how much you consume.

Vitamin D Dosage: How Much Do You Need?

General daily intake recommendations for vitamin D vary by age, but correcting an actual deficiency is a different, doctor-guided process — here's the distinction.

Vitamin D Test: Normal Range and What It Means

A simple blood test is the only reliable way to know your vitamin D level — here's how it works and how to interpret the result.

Best Sources of Vitamin D

Sunlight, food, and supplements are the three ways to get vitamin D — here's how much each realistically provides.

Symptoms of Vitamin D Deficiency

Vitamin D deficiency is often silent, but when symptoms do appear, they tend to be subtle and easy to attribute to other causes — here's the full picture.

How to Lower Blood Pressure: Lifestyle Changes That Actually Help

Several lifestyle changes have strong, well-established effects on blood pressure — here's what the evidence supports, with specific, actionable targets.

Hausse soudaine de la tension : causes, que faire et signes d'urgence

Une mesure soudainement très élevée appelle un comportement calme et rapide. Découvrez le seuil 180/120, quand il s'agit d'une urgence et quoi faire ensuite.

Symptoms of Low Blood Pressure

Unlike high blood pressure, low blood pressure often causes noticeable symptoms — here's what to watch for, and the signs of a serious drop.

Causes of Low Blood Pressure

Low blood pressure can be a normal individual trait, or it can result from dehydration, medications, or an underlying condition — here's how to tell the difference.

Low Blood Pressure

Unlike high blood pressure, low blood pressure often causes noticeable symptoms — here's when it's a normal variation and when it needs attention.