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HEALTH NEWS

Fact Checked


STUDY FINDS PEOPLE WITH INSOMNIA NEARLY 70% MORE AT RISK FOR A HEART ATTACK

By Kaitlin Vogel on February 24, 2023 — Fact checked by Maria Gifford
Share on PinterestDmitry Marchenko / EyeEm/Getty Images
 * New research indicates that people who have insomnia were 69% more likely to
   have a heart attack compared to those who didn’t.
 * People who slept five hours or less had the greatest chance of experiencing a
   heart attack. Those with diabetes and insomnia had double the risk of having
   a heart attack.
 * Sleep helps regulate blood sugar, blood pressure and weight, which are all
   connected to cardiovascular health.

With approximately 1 in 3 adultsTrusted Source in the U.S. not getting enough
sleep, insomnia is a common health problem.

Lack of sleep can lead to a long list of chronic health issuesTrusted Source,
including heart disease, diabetes, stroke, high blood pressure, obesity and
depression.

According to a new study published Friday in Clinical Cardiology,people who
suffer from insomnia were 69% more likely to have a heart attack compared to
those who didn’t. The research was taken from an average of nine years of
follow-up among patients.

Additionally, researchers found that people who slept five or fewer hours had
the highest chance of suffering a heart attack. Those with diabetes and insomnia
had double the risk of having a heart attack.



WHAT THE STUDY FOUND

They gathered data from 1,184,256 adults (43% were women). The average age was
52 years and 13% (153,881) had insomnia. Being diagnosed with insomnia was
determined by having any of the following: trouble falling asleep, trouble
staying asleep or waking early and not being able to fall back to sleep.

It’s important to note that 96% of patients did not have a previous history of
heart attack. Heart attacks occurred in 2,406 of patients with insomnia and
12,398 in the group who didn’t have insomnia.

Results showed a direct correlation between insomnia and having a heart attack
among all patients, regardless of age, sex, follow-up duration, and common
comorbidities (including diabetes, high blood pressure or cholesterol).

Specifically, those who slept five or fewer hours a night were 1.38 and 1.56
times more likely to experience a heart attack compared with those who slept six
and seven to eight hours a night.

Yomna E. Dean, a medical student at Alexandria University in Alexandria, Egypt,
and author of the study explained the main takeaways from the study.

First, “insomnia puts us at risk of developing heart attacks; subsequently,
patients should be educated about the importance of sleep in maintaining a
healthy heart,” Dean told Healthline. “Sleep should be incorporated into the
primary preventive guidelines for cardiovascular disease.”

Second, insomniacs should be regularly screened for coronary artery disease.

Lastly, excessive sleep could be equally and sometimes even more harmful than
sleep deprivation, Dean added.


SLEEP AND HEART HEALTH

The connection between sleep and the heart has many layers.

“One layer is the amount of sleep — people who do not get enough sleep are not
able to provide their body with the amount of all the different sleep stages
needed to maintain optimal functioning,” said Michael A. Grandner, Ph.D., MTR,
volunteer medical expert for American Heart Association’s (AHA) Go Red for Women
initiative, co-author of the AHA’s new Life’s Essential 8 cardiovascular health
scoreTrusted Source.

Also important is sleep quality.

“Even if you get enough sleep, sometimes sleep can be shallow and fragmented,
which also prevents your body from performing all the maintenance it needs
during that time. Other dimensions are important too,” Dr. Grandner explained.

For example, a recent studyTrusted Source showed that irregular sleep patterns
on their own can contribute to atherosclerosis risk, and people who are very
sleepy during the day also are more likely to have cardiovascular events, Dr.
Grander added.

“Sleep is vital in helping the body repair itself,” said Wafi Momin, DO, a
cardiologist with UTHealth Houston Heart & Vascular and Memorial Hermann.
“Getting at least seven hours of sleep each night helps your body recover and
allows you to function normally the following day.”

Getting enough shut-eye can also help manage blood pressure, blood sugar and
weight, all of which contribute to heart health.

“Regular, consistent sleep also helps regulate blood pressure, sugar levels as
well as weight,” Dr. Momin said. “These health problems are linked to heart
diseases such as heart attack and stroke so getting plenty of sleep and
regulating these risk factors can be of much help.”

Sleep deprivation, a consequence of insomnia, puts the body under stress,
triggering cortisol release which could accelerate atherosclerosis, Dean
explained. A studyTrusted Source conducted on patients who developed acute
myocardial infarction (MI) found that the concentration of cortisol in their
hair was elevated in the month preceding the MI.



TIPS TO GET A GOOD NIGHT’S SLEEP

Proper sleep hygiene is crucial. Dean suggested:

 * Avoiding uncomfortable temperatures, light, and noises in the bedroom.
 * Limiting the screen time an hour prior to bed at the minimum.
 * Avoiding heavy meals near bedtime.
 * Avoiding caffeine prior to bedtime.

Additionally, Dr. Grandner recommended giving yourself enough time and space to
wind down at night.

“When you get into bed, your mind and body should be ready to detach from the
day. that means putting down screens, engaging in relaxing behaviors, and
avoiding eating or drinking too much too close to bedtime,” Dr. Grandner stated.

Also, when you are in bed, it is important not to spend too much time laying in
bed awake.

If you cannot sleep, you should get out of bed and only get back into bed if
sleep is possible. It may mean less sleep opportunity tonight but it can prevent
longer-term insomnia, Dr. Grandner explained.

The main cause of long-term insomnia is people struggling too much to sleep, and
sleep becoming so stressful that the stress of not sleeping keeps you awake and
it becomes a self-fulfilling prophecy. The best way to avoid this is to break
the bed-equals-wake cycle and support a bed-equals-sleep connection when you
can, Dr. Grandner added.



TAKEAWAY

According to a new study, people who have insomnia were 69% more likely to have
a heart attack compared to those who didn’t.

Results showed a link between insomnia and heart attack risk. Patients who slept
five hours or less had the highest risk of experiencing a heart attack. People
with diabetes and insomnia had double the risk of having a heart attack.

Getting quality sleep is important for overall health, especially cardiovascular
health. It is proven to stabilize blood sugar, regulate blood pressure and
support weight management, which are all tied to heart health.

Proper sleep hygiene is essential. To get a good night’s sleep, experts
recommend keeping the room dark and cool, limiting screen time, and avoiding
caffeine close to bedtime.




HOW WE REVIEWED THIS ARTICLE:

History

Our experts continually monitor the health and wellness space, and we update our
articles when new information becomes available.

Current Version

Feb 24, 2023

Written By

Kaitlin Vogel

Edited By

Gillian Mohney

Fact Checked By

Maria Gifford

Share this article


By Kaitlin Vogel on February 24, 2023 — Fact checked by Maria Gifford


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