Latest about Heart & Circulation
If blood is red, why do veins look bluish?
Blood is always red, and veins look blue or green because the skin filters light wavelengths differently.
What is a normal heart rate?
Monitoring your heart rate can help you track your fitness level and overall health.
Why You Should Check Your Blood Pressure in the Morning
Does time of day matter when it comes to taking blood pressure?
Here's What a Single Milkshake Does to Your Blood Vessels
A chocolate milkshake may be bliss for your taste buds, but it's not so good for your blood vessels.
Sweet Therapy: Chocolate May Help Prevent Irregular Heartbeat
Eating a few ounces of chocolate a week may be a sweet way to lower your risk of atrial fibrillation, a new study finds.
Staying hydrated may reduce the risk of heart failure
Drinking enough fluids is important for numerous bodily functions, including helping the heart pump blood more easily.
11 Surprising Facts About the Circulatory System
The human circulatory system was once a subject of great mystery, but now, modern science has revealed its inner workings. Here are 11 surprising facts about the human circulatory system.
The Circulatory System: An Amazing Circuit That Keeps Our Bodies Going
The heart, lungs and about 60,000 miles of blood vessels work together to keep blood pumping through our bodies.
