Apparently you really can have too much of a good thing, even exercise.

Although an active lifestyle taht includes exercise is viewed as a key part of managing high blood pressure and heart disease, new research finds that excessive exercise worsens high blood pressure and speeds up heart failure in rats, according to a Reuters report detailed on Scientific American Online.

Dr. Rebecca L. Schultz and colleagues at the University of South Dakota, Sioux Falls, report the results in the journal Hypertension

Click here to read the whole Reuters story