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A new study finds that sleep problems can increase someone's risk of stroke. Sleep problems can include too little sleep (less than five hours), too much sleep (more than nine hours), poor quality, difficulty getting to sleep or staying asleep, prolonged napping, and snoring and breathing cessation.
In this Mayo Clinic Minute, Dr. Stephen English, a Mayo Clinic vascular neurologist, explains why poor sleep can be linked to stroke.
Journalists: Broadcast-quality video (1:05) is in the downloads at the end of this post. Please courtesy: "Mayo Clinic News Network." Read the script.
Sleep is something people spend about a third of their lives doing and for good reason.
"It's so restorative for brain health," explains Dr. English. "Adequate sleep helps to ensure that our blood vessels and our brain cells are healthy and viable for years to come."
But tossing and turning at night can have consequences, including increasing someone's risk of stroke.
"When people have sleep-related disorders, such as sleep apnea, they're getting less sleep or poor-quality sleep. And that leads to reduced oxygen and blood flow to the brain. And that can reduce or make changes over time to the brain that leads to increased risk of stroke or cognitive impairment from vascular disorders to the brain," says Dr. English.
He says it's important to recognize that sleep hygiene, along with diet and exercise, is a modifiable risk, and it's never too late to make changes to reduce your risk.
"The better we are at taking care of the foundational things for our health go a long way to making sure our blood pressure, diabetes, high cholesterol — those are the risk factors. If we can modify those, we can really reduce our risk long term," says Dr. English.
May is Stroke Awareness Month, and Dr. English says it's important to know the signs that someone may be having a stroke and needs emergency evaluation. Use the acronym FAST to help remember warning signs.
Other signs and symptoms of a stroke, which come on suddenly, include:
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