One arm is more likely that the other to hurt during a heart attack. It's the arm that shares nerves that branch from the ...

T he heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

The ability of the human heart to renew itself by regenerating its muscle cells, myocytes, is very limited. ... New Discovery: Tylenol Stops Pain at the Nerves, Before It Hits the Brain.

Our research suggests that the human heart has adapted to support our upright stance, movement and larger brain. Over the last 10 years, we have been conducting assessments of the cardiovascular ...