Human heart
Latest about Heart & Circulation
9 heart disease risk factors, according to experts
By Lou Mudge published
It's the leading cause of death in the United States, but what are the top heart disease risk factors?
Heart disease: Types, prevention and treatments
By Joe Brownstein last updated
Heart disease is the leading cause of death in the United States, and encompasses a range of conditions. But are there ways to avoid it?
Why are heart attacks more common in winter? A cardiologist explains
By Lou Mudge published
Colder weather can trigger a number of physiological changes that may increase the risk of a cardiac event.
What is normal blood sugar?
By Natalie Grover, Elizabeth Peterson last updated
Blood sugar, or glucose, is the main source of fuel for our body - keeping it in check is essential to our health.
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?
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