Sometimes blood can look blue through our skin. But this is an optical illusion.
Inside your body there’s a bustling highway with your beating heart at the center. Learn all about your body’s 60,000 miles of microscopic blood vessels, 5 to 6 quarts of blood, and the sundry passengers (lymph, blood cells, nutrients and more) that ride it every day.
A new evolutionary investigation finds that skinks likely evolved to have green blood a total of four different times throughout history.
There are a lot of ways to die from a traumatic injury, but many of them come down to this: So much blood spills out that your body just stops working.
A chocolate milkshake may be bliss for your taste buds, but it's not so good for your blood vessels.
Researcher say they've found a network of fluid-filled spaces in tissue that hadn't been seen before.
Regularly eating meats that are sizzled on the grill may increase the risk of high blood pressure, a new study suggests.
People who experience migraines may be more likely to develop cardiovascular problems, a new study from Denmark finds.
It's really tricky to measure how much marijuana a person has used on a given day — and how impaired their driving may be as the result of that use — a new review says.
Injecting the blood plasma of healthy young people into people with Alzheimer's disease might be safe, but not all experts are behind the idea.
High blood pressure is a serious disease that can, over time, damage the blood vessel walls and increase a person's risk of heart attack, stroke and other conditions.
If your mother ever warned you to slow down because you eat too fast, she now has at least one good reason to support her case.