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Can walking lower blood pressure?
By Becks Shepherd last updated
reference Can walking lower blood pressure? We look at the impact walking can have on blood pressure and examine the evidence behind it

If blood is red, why do veins look bluish?
By Donavyn Coffey last updated
Blood is always red, and veins look blue or green because the skin filters light wavelengths differently.

What is a normal heart rate?
By Bahar Gholipour, Nicoletta Lanese last updated
Monitoring your heart rate can help you track your fitness level and overall health.

Why You Should Check Your Blood Pressure in the Morning
By Sara G. Miller last updated
Does time of day matter when it comes to taking blood pressure?

Here's What a Single Milkshake Does to Your Blood Vessels
By Rachael Rettner last updated
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
By Cari Nierenberg last updated
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
By Rachael Rettner last updated
Drinking enough fluids is important for numerous bodily functions, including helping the heart pump blood more easily.

11 Surprising Facts About the Circulatory System
By Joseph Castro last updated
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.
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