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How Stress Increases Your Risk of Heart Disease

We’re probably all pretty familiar with stress. In the short term, stress can actually be helpful and may even help you survive in the face of danger.

For instance, if you see a large dog running toward you, your body’s stress response can help you get out of the way to avoid getting hurt.

However, when stress is ongoing, it can have damaging effects on your physical and mental health. In fact, research has shown that chronic stress may be one of the leading risk factors for heart disease.

In this article, we’ll dive into the basics of stress and how chronic stress can raise your risk of heart disease. If you want to know what you can do to manage stress in a healthy way, we have that covered, too.

What is stress?

Stress is your body’s response to a physical or psychological trigger that you perceive as challenging or threatening. In broad terms, stress is any change you have to adapt to.

While we often view stress in a negative light, not all stress is bad. In fact, good stress does exist, and it’s called eustress.

An example of eustress is getting a new project at work. It may feel daunting at first and there may be obstacles along the way. However, it also gives you and your team a chance to shine, learn new skills, and be recognized for the good work you do.

There are also two other types of stress: acute and chronic stress. Both can impact your body and cause specific changes.

Acute stress

Acute stress is short term and identifiable. For instance, you might have acute stress when you:

  • go for a job interview
  • have to speak in public
  • pay a visit to the dentist
  • get stuck in traffic on the way to work
  • are driving and have to swerve to avoid hitting another car

When you’re faced with acute stress, your body recognizes the change it needs to adapt to, deals with it, and then returns to a normal state.

Chronic stress

Chronic stress happens when you face a challenge that doesn’t have a clear end. As a result, you stay in a heightened state of readiness to face an ongoing threat.

Chronic stress doesn’t give your body a chance to recover and return to a normal state.

When you deal with this type of stress, your breathing and heart rate remain faster, your muscles stay tense, and your digestive system may not work like it should. Also, your immune system may be less effective.

There are many potential causes of chronic stress. Some examples include:

  • dealing with a chronic illness
  • financial worries
  • family or relationship issues
  • caring for a family member
  • pressure or challenges related to your job
  • discrimination or racism

How does stress affect your body?

The stress response is an adaptation that prepares your body to deal with a challenge or threat. The stress response begins in your brain after you’ve perceived something as stressful or threatening.

Generally speaking, there are two different components to the stress response:

  • Cortisol. When you encounter a stressor, your brain increases its production of cortisol, also known as the “stress hormone.” One of cortisol’s main functions is to increase your energy levels so you can deal with a stressful situation. It does this by helping to move sugars stored in your liver into your bloodstream, where the sugars can be used as energy.
  • Epinephrine and norepinephrine. Another part of your brain signals for the increased production of the hormones epinephrine and norepinephrine. This part of the stress response is often referred to as the “fight or flight” response. Increases in these hormones prepare your body to deal with a stressful situation by:
  1. raising your heart rate and blood pressure
  2. increasing your breathing rate
  3. increasing blood flow to your muscles
  4. decreasing digestion
  5. boosting your energy supplies

How does stress affect your heart?

When stress becomes chronic (long lasting or ongoing), it can have harmful effects on your body. The effects of stress on heart health have long been studied, particularly since the cardiovascular system is a vital part of our stress response.

A 2021 studyTrusted Source included 118,706 people without existing heart disease across 21 countries. Overall, the researchers found that high stress was associated with an increased risk of:

  • cardiovascular disease
  • coronary heart disease
  • stroke
  • death

Additionally, according to a 2018 study, stress may be a risk factor for cardiomyopathy, a progressive disease that causes the heart muscle to weaken.

Also in 2021, the American Heart Association released a scientific statementTrusted Source regarding the importance of the effect of psychological health on heart health.

In it, the association noted that research has shown that both significant events and the buildup of everyday stresses can increase the risk of cardiovascular disease. This included:

  • Perceived stress. Perceived stress is the level of stress you believe you’re currently under. High levels of perceived stress, regardless of cause, have been linked to coronary heart disease and coronary heart disease-related deaths.
  • Work-related stress. Stress related to work or the workplace has been associated with a 40 percent increase in the risk of cardiovascular disease.
  • Social isolation. Social isolation and loneliness were linked with cardiovascular disease risk and a 50 percent increase in the risk of cardiovascular events like a heart attack or stroke.
  • Stress during childhood. Going through stressful or traumatic events in childhood was linked to higher levels of inflammation and an increase in certain risk factors for heart disease later in life.

How to manage stress and protect your heart

Although you can’t completely avoid stress, there are steps you can take to manage stress effectively and to protect your heart health. Let’s look at some examples of helpful stress management techniques.

Get regular exercise

Regular exercise is great for heart health. It can also lower stress and lift your mood. Aim to get at least 30 minutes of exercise most days of the week. If you don’t know how to start, ask your doctor for some recommendations.

Try relaxation techniques

Relaxation techniques are an effective way to ease stress. They can help lower your blood pressure and heart rate, and make you feel calmer.

There are many types of techniques you can try. You may want to try a few to determine which one works best for you.

Do something you enjoy

Sometimes engaging in an activity you really enjoy can help reduce your stress levels. When you focus on doing something that’s fun or that holds your interest, you’ll be less likely to dwell on the things that are causing you to feel stressed.

Get enough sleep

Good quality sleep is vital for your physical and mental health. Regular, restful sleep can keep you healthy and also plays a vital role in how you manage stress. Feeling tired and not being able to think clearly can make it much harder to deal with stressful situations.

Aim to get 7 to 9 hoursTrusted Source of good quality sleep each night. If you have trouble getting a good night’s sleep, these tips may help you get the restful sleep you need.

Connect with others

Spending time with supportive family and friends can help you decompress. It can also provide you with support when you’re going through a particularly stressful period.

If you can’t be with your loved ones in person, try to reach out with a phone call, text message, or video chat.

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