How Does Stress Cause Heart Disease?
How Does Stress Cause Heart Disease?
How does stress cause heart disease?
Stress and heart disease have various aspects. Stress can lead to increase in risk factors for heart disease as well as precipitate symptoms in a hitherto silent heart disease.
Most older persons have build-up of plaques in the blood vessels of the heart (coronary arteries). When there is a sudden severe stress, heart rate and blood pressure can shoot up.
This can lead to increase of shear stress on the fat plaques in the blood vessels of the heart. A small break may form in the covering of the plaque, exposing the inner cells.
Content
2.919 -> How does stress cause heart disease?
Stress and heart disease have various aspects.
12.87 -> Stress can lead to increase in risk factors
for heart disease as well as precipitate symptoms
18.4 -> in a hitherto silent heart disease.
Most older persons have build-up of plaques
23.8 -> in the blood vessels of the heart (coronary
arteries). When there is a sudden severe stress,
29.66 -> heart rate and blood pressure can shoot up.
This can lead to increase of shear stress
34.989 -> on the fat plaques in the blood vessels of
the heart. A small break may form in the covering
41.17 -> of the plaque, exposing the inner cells.
Blood components known as platelets adhere
48.079 -> to these breaks in the inner surface of the
blood vessels and initiate the formation of
52.969 -> blood clots. Blood clots in turn block the
flow of blood in the vessel, leading to damage
59.01 -> of heart muscle known as heart attack.
Sudden stress can sometimes lead to a surge
65.19 -> in the blood levels of certain hormones like
adrenaline. These contribute to the surges
70.46 -> in blood pressure and heart rate.
In addition, this can upset the heart rhythm
75.82 -> leading to life threatening rhythm disorders
(cardiac arrhythmia) which can sometimes cause
82.6 -> sudden stoppage of the heart (cardiac arrest).
Another manifestation of stress in the heart
89.289 -> is the ‘broken heart syndrome‘ or stress
cardiomyopathy which has been detailed in
95.17 -> another video on this channel. Broken heart
syndrome was initially described more in elderly
102.079 -> females after sudden demise of their spouse.
Part of the left ventricle (lower muscular
109.409 -> chamber of the heart) becomes enlarged, giving
it the name apical ballooning. This occurs
116.499 -> in the absence of any blockage to the blood
supply.
120.36 -> Most of these cases do recover sooner or later.
Stress cardiomyopathy has been described along
127.71 -> with multiple other forms of stress other
than bereavement.
132.53 -> Stress in general changes our life style and
we may eat more of carbohydrate and fat. This
139.74 -> has long term consequences like increase in
body weight, blood sugar and blood pressure.
146.06 -> These can further increase the chance of heart
disease. Stress increases the blood pressure
151.29 -> and blood sugar through hormonal influences
even without a change in the diet pattern.
Source: https://www.youtube.com/watch?v=sdyOnE2wofw