Trusted Health Articles

Anemia

Iron deficiency is the most common cause of anemia, but it's far from the only one — knowing the type matters because the treatment is completely different depending on the cause.

Causes of Numbness in the Hands and Feet

Occasional numbness from sitting awkwardly is harmless, but persistent or recurring numbness in the hands or feet can point to a nerve, circulation, or metabolic issue worth investigating.

Insomnia: Symptoms, Causes, and Treatment (CBT-I and More)

Insomnia is the most common sleep complaint, and while an occasional bad night is normal, persistent difficulty sleeping is a treatable condition, not something to just live with.

Diarrhea

Diarrhea is almost always the body dealing with a temporary irritant or infection — here's what typically causes it, how to treat it at home, and when it points to something that needs attention.

Food Poisoning

Food poisoning usually strikes within hours of eating contaminated food and clears up on its own within a few days — here's how to spot it, treat it, and know when it's more serious.

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.

Fast Heart Rate: Causes, Symptoms, and When to Seek Medical Care

A racing heart is often a normal reaction to exercise, stress, or caffeine — but persistent or unexplained tachycardia can point to an underlying condition worth checking.

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.

Chest Pain: Causes, Symptoms, Warning Signs, and When to Seek Help

Chest pain has many possible causes ranging from harmless to life-threatening. Here's how to think about different patterns — breathing, eating, moving — and the red-flag features that mean it's time for emergency help.

Heart Attack Symptoms: Warning Signs, What to Do, and When to Call Emergency

A suspected heart attack is an emergency. Learn the warning signs, including the less obvious ones, and what to do while you wait for help.

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.

HDL Cholesterol: Normal Levels, Low and High HDL, and What Your Results Mean

HDL is often called "good" cholesterol, but it's not as simple as "the higher, the better" — here's what a normal level actually means.

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.

Normal Cholesterol Levels: LDL, HDL, Total Cholesterol, and Triglycerides

A lipid panel reports several numbers at once — see the general reference ranges for total cholesterol, LDL, HDL, and triglycerides, and why your personal target can differ.