Ok, your link was to a popular press article.  I try to only address the
full-text study (when I can afford to buy it - unfortunately that is
rarely), or the NIH Pub Med or publishing Journal's abstract (although it
has been repeatedly demonstrated that there is often industry bias in the
abstracts, at least they are "source" material).

So, gleaning the info from the press article you offered, here is the Mayo
Clinic abstract:

http://www.mayoclinicproceedings.com/Abstract.asp?AID=853&Abst=Abstract&UID=

Abstract

Mayo Clin Proc. 2005;80:335-342 ? 2005 Mayo Foundation for Medical Education
and Research

ORIGINAL ARTICLE

Prevalence of Hostility in Young Coronary Artery Disease Patients and
Effects of Cardiac Rehabilitation and Exercise Training
CARL J. LAVIE, MD; RICHARD V. MILANI, MD

OBJECTIVE: To determine the prevalence of hostility symptoms in young
patients with coronary artery disease (CAD), the associated risk factor
profile in these patients, and the effects of a formal phase 2 cardiac
rehabilitation and exercise training.

PATIENTS AND METHODS: Our study included consecutive CAD patients referred
for cardiac rehabilitation from May 1999 through December 2000. At baseline
and after rehabilitation, behavioral factors and quality of life were
assessed by validated question naires, and standard CAD risk factors were
measured, including exercise capacity. We specifically evaluated detailed
data for young patients.

RESULTS: A total of 500 patients were included in the study. Hostility
scores were 2.5 times higher (P<.001) in the 81 young patients (<50 years;
mean ? SD age, 45? 5 years) than in the 268 eldedy patients ?65 years; mean
? SD age, 70? 4 years), and the prevalence of hostility symptoms was 3.5
times higher in young patients (28% vs 8%; P<.001). Young patients with
hostility symptoms also had more adverse CAD risk profiles, including higher
total cholesterol levels, triglyceride levels, total
cholesterol/high-density lipoprotein cholesterol ratios, fasting glucose
levels, and glycosylated hemoglobin levels and lower quality-of-life scores
compared with young patients with low hostility scores. After cardiac
rehabilitation, young patients with hostility symptoms had marked
improvements in CAD risk factors, behavioral characteristics (including
hostility), and quality of life, and a nearly 50% (P=.005) reduction in the
prevalence of hostility symptoms occurred.

CONCLUSIONS: Young CAD patients have a high prevalence of hostility symptoms
and adverse CAD risk profiles. Reducing hostility symptoms and other
parameters of psychological distress in young CAD patients should be
emphasized, and the potential benefits of cardiac rehabilitation programs in
the secondary prevention of CAD should be highlighted.

Mayo Clin Proc. 2005;80(3):335-342

     BMI = body mass index; CAD = coronary artery disease; HDL-C =
high-density lipoprotein cholesterol; LDL-C = low-density lipoprotein
cholesterol; METs = metabolic equivalents; 02= oxygen consumption per unit
time

Interesting, they talk about emphasis on reducing hostility symptoms and
other parameters of psychological distress in young CAD patients, as
secondary prevention of CAD.  Sounds to me more like a touchy feely
psychological approach to CAD risk profile therapy, independent of
cholesterol level.

Again, however, the terminology they use does not appear in the terminology
used in the studies of low cholesterol and aggression, suicide, violence,
etc.

http://tinyurl.com/6jqh3

"The investigators found that the rate of hostility symptoms was more than
three times higher in young patients, compared with elderly people with
CAD. Young heart patients with signs of hostility tended to have higher
cholesterol compared with young patients with few signs of hostility."

Sharon, shouldn't it have been LOWER?

L.