Heart Health
Blood pressure, cholesterol, heart rate, and palpitations: what your numbers mean, daily habits that can help, and when to get care.
Swollen Ankles and Feet Causes: From Long Days on Your Feet to Signs of a Heart Problem
Swollen ankles and feet causes range from heat, salt, and standing to heart, kidney, or vein problems. One swollen, painful leg can mean a blood clot.
What Is a Normal Resting Heart Rate? How to Check Your Pulse and What the Number Means
A normal resting heart rate for adults is 60 to 100 beats per minute. How to take your pulse, what changes it, and when a high or low rate needs care.
Sleep and Heart Health: How Your Nights Affect Your Heart, Plus a 2-Week Sleep Log
How sleep and heart health are linked, how many hours adults need, habits for steadier sleep, a 2-week sleep log, and when snoring needs a doctor.
Heart Palpitations Causes: Harmless Triggers, Warning Signs, and How Doctors Check
Heart palpitations causes range from coffee and stress to thyroid and rhythm problems. Learn common triggers, warning signs, and how to keep a diary.
Sitting Too Much: The Health Risks and a Simple Plan to Break Up Your Day
What research links to sitting too much, why exercise alone may not cancel it out, and a simple day plan, swaps, and log to break up long hours of sitting.
Walking for Heart Health: How Much You Need and a 6-Week Plan From 10 Minutes a Day
Walking for heart health: how much adults need each week, the talk test for brisk pace, and a 6-week plan that starts with just 10 minutes a day.
High Cholesterol: What Do Cholesterol Numbers Mean on Your Lab Report?
High cholesterol explained in plain words: what LDL, HDL, and triglycerides mean, healthy ranges, how often to test, and a lab report tool to copy.
How to Lower Blood Pressure: Daily Changes That May Help and a 4-Week Habit Plan
How to lower blood pressure with habits health agencies recommend: the DASH eating plan, less sodium, more activity, and better sleep, plus a 4-week plan.
Blood Pressure Chart: What Is Normal Blood Pressure and What Your Reading Means
A blood pressure chart based on American Heart Association categories, what your top and bottom numbers mean, and how to measure correctly at home.
High Blood Pressure Symptoms: Why Most People Feel Nothing and What to Watch For
High blood pressure usually has no symptoms. Learn the common myths, the crisis signs that need 911, who is at risk, and a home log to track your numbers.
About our Heart Health guides
Heart health is built in daily habits: how much you move, how you sleep, what you eat, and whether you know your numbers. This section explains blood pressure, cholesterol, and heart rate in plain language.
You will find logs to track your readings, simple plans for walking and sitting less, and clear guidance on which symptoms can wait for a regular visit and which need care right away.
Every guide is built on primary medical sources, such as the National Institutes of Health, the CDC, and MedlinePlus, which are linked at the end of each page. Read how we research and write and our medical disclaimer.