Good Cholesterol vs Bad Cholesterol: HDL and LDL Explained
Few health terms are as familiar, or as easily misunderstood, as "good" and "bad" cholesterol. You have probably heard that one type is something…
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Health
Preventive care, mental health, nutrition, dental and vision news, plus the policy that shapes what your insurance pays for.
What Are Electrolytes and Why Do They Matter?
Electrolytes are minerals that carry an electric charge when dissolved in your body's fluids, and they keep essential systems like nerve signaling, muscle movement,…
How Many Steps a Day Is Healthy?
There is no single official number of steps that defines healthy, but moving more each day is broadly associated with better health, and the…
What Causes Muscle Cramps at Night?
Nighttime muscle cramps are sudden, involuntary contractions, usually in the calf or foot, and their exact cause is often unclear even though several everyday…
How Much Water Should You Drink a Day?
There is no universal correct amount, but a widely used general guideline is around six to eight glasses of fluid a day, adjusted for…
What Is Resting Heart Rate, and Why Does It Matter?
Resting heart rate is how many times your heart beats per minute while you are calm, still, and not recently active. For most adults…
What Is a Heart Rate Zone? A Simple Guide
What is a heart rate zone? Learn how the five zones work, how to estimate your maximum heart rate, and what each zone means…
What Is BMR? Basal Metabolic Rate Explained
BMR, or basal metabolic rate, is the calories your body burns at rest to stay alive. Learn what it means, how it's estimated, and…
What Is Fiber? Soluble vs. Insoluble Explained
Dietary fiber is the part of plant foods your body cannot digest. Learn soluble vs. insoluble fiber, benefits, and how much you need each…
What Is REM Sleep? Stages and Why It Matters
REM sleep is the dream stage of sleep tied to memory and mood. Learn what it is, how much you need, and why it…