Breaking News
January 24, 2019 - Good health literacy linked to better adherence to blood pressure medications among Hispanics
January 24, 2019 - Only a minority of patients in the U.S. with type 1 diabetes achieve treatment goals
January 24, 2019 - High fat reduces efficiency of the immune system to fight infectious disease
January 24, 2019 - Study highlights need for reliable therapeutic targets for prevention, treatment of cardiovascular diseases
January 24, 2019 - Next step toward replacement therapy in type 1 diabetes
January 24, 2019 - “Scientific serendipity” identifies link between type of RNA and autism
January 24, 2019 - Trump Zeroes In On Surprise Medical Bills In White House Chat With Patients, Experts
January 24, 2019 - Unique form of chronic sinusitis found in older patients
January 24, 2019 - NUS researchers make muscle recovery easier for patients with ingenious medical device
January 24, 2019 - Specific cognitive deficits found in individuals with spinal cord injury
January 24, 2019 - An essential reference for diagnostic ultrasonography and biopsy of the thyroid gland
January 24, 2019 - Proteus Digital Health Launches Digital Oncology Medicines to Improve Patient Outcomes
January 24, 2019 - Study looking to prevent type 1 diabetes follows children into adolescence
January 24, 2019 - Nice doctors make a difference
January 23, 2019 - Blood vessel discovery could advance our knowledge of osteoporosis
January 23, 2019 - New esophageal cancer test uses genetic biomarkers to detect changes in esophagal cells
January 23, 2019 - Study evaluates first-ever Robotic Visualization System for neurosurgery
January 23, 2019 - Scientists reveal new mechanism that could lead to specific treatment of strokes and seizures
January 23, 2019 - Both educational level and occupational orientation predict mother’s smoking during pregnancy
January 23, 2019 - How to (gently) get your child to brush their teeth
January 23, 2019 - Short-term hospital readmissions for gun injuries cost $86 million a year | News Center
January 23, 2019 - New certified reference material for testing residual solvents in cannabis
January 23, 2019 - Gene-edited chickens could prevent future flu pandemic
January 23, 2019 - Cardiovascular disease risk begins even before birth
January 23, 2019 - Younger patients receiving kidney transplant more likely to live longer, shows data
January 23, 2019 - Skin samples hold early signs of prion disease, research suggests
January 23, 2019 - Researchers discover how body initiates repair mechanisms that limits damage to myelin sheath
January 23, 2019 - Fecal transplant from certain donors better than others
January 23, 2019 - Risk for Uninsurance in AMI Patients Reduced With Medicaid Expansion
January 23, 2019 - Readmissions reduction program may be associated with increase in patient-level mortality
January 23, 2019 - Fostering translation and communication in medicine and beyond
January 23, 2019 - To Fight Fatty Liver, Avoid Sugary Foods and Drinks
January 23, 2019 - TPU scientists develop new implants that double the rate of bone lengthening in kids
January 23, 2019 - New sessions at Pittcon 2019
January 23, 2019 - Insilico to present latest findings in AI for Drug Discovery at 3rd Annual SABPA FTD Forum
January 23, 2019 - Opioid overdose patients can be safely discharged an hour after administration of naloxone
January 23, 2019 - Scientists find bacterial extracellular vesicles in human blood
January 23, 2019 - Researchers use modified type of flu virus to develop new therapies for prostate cancer
January 23, 2019 - Researchers gain new insights into development of necrotizing enterocolitis in preemies
January 23, 2019 - Medical expert advises people with epilepsy not to stockpile medicines
January 23, 2019 - CDC study explores link between smoking and clinical outcomes of assisted reproductive technology
January 23, 2019 - Study outlines research priorities for improving pediatric patient care and safety
January 23, 2019 - Bedfont to exhibit NObreath FeNO monitor at Arab Health 2019
January 23, 2019 - Nicotinamide riboside supplementation confers significant physiological benefits to mothers and offspring
January 23, 2019 - Increasing temperatures may help preserve crop nutrition
January 23, 2019 - Many Oncologists in the Dark About LGBTQ Health Needs
January 23, 2019 - Epigenetic change causes fruit fly babies to inherit diet-induced heart disease
January 23, 2019 - Erasing memories could reduce relapse rates among drug addicts
January 23, 2019 - African Americans who smoke cigarettes are more likely to develop peripheral artery disease
January 23, 2019 - Unique data combination helps FinnGen researchers to fund links between genetic factors and health
January 23, 2019 - Parents’ mental health problems associated with reactive attachment disorder in children
January 23, 2019 - Graphene Flagship project studies impact of graphene and related materials on our health
January 23, 2019 - The connection between the Pope and contraceptive pills
January 23, 2019 - Prior dengue infection could protect children from symptomatic Zika
January 23, 2019 - Previous dengue virus infection associated with protection from symptomatic Zika
January 23, 2019 - VISTA checkpoint implicated in pancreatic cancer immunotherapy resistance
January 23, 2019 - The Tiny Camera That Could Revolutionize Cardiovascular Surgery
January 23, 2019 - Peptide isolated from soil fungi has antitumor and antibacterial properties
January 23, 2019 - TGen identifies polio-like virus as potential cause of Acute Flaccid Myelitis outbreak
January 23, 2019 - Migrants and refugees do not bring disease and are at greater health risk themselves says WHO
January 23, 2019 - Examing the effects of menopause in workplace
January 23, 2019 - Enemy number 1 – Air pollution and climate change top of WHO agenda
January 23, 2019 - Two Positive Phase III studies of Tafenoquine for the Radical Cure of Plasmodium vivax Malaria Published in The New England Journal of Medicine
January 23, 2019 - World Trade Center responders at increased risk for head and neck cancers
January 23, 2019 - Low-sugar diet leads to significant improvement in nonalcoholic fatty liver disease in boys
January 23, 2019 - Chaos in bodily regulation can optimize our immune system, finds study
January 23, 2019 - Short, text-based exercises can increase happiness for adults recovering from substance use disorders
January 23, 2019 - Body size may have greater influence on women’s lifespan than men
January 23, 2019 - Groundbreaking tool helps visualize neuronal activity with near-infrared light
January 23, 2019 - Prior dengue immunity in children may be protective against symptomatic Zika
January 23, 2019 - Holocaust survivors with PTSD and their offspring exhibit more unhealthy behavior patterns
January 23, 2019 - Scientists discover new genetic mutations causing inherited deaf-blindness
January 23, 2019 - UC team designs new naloxone-dispensing smart device
January 23, 2019 - Torrent Pharmaceuticals Limited Issues Voluntary Nationwide Recall of Losartan Potassium Tablets, USP and Losartan Potassium and Hydrochlorothiazide Tablets, USP
January 23, 2019 - Brain activity shows development of visual sensitivity in autism
January 23, 2019 - Two hour gap between dinner and sleep is overrated says Japanese research
January 23, 2019 - Fear and embarrassment are causing smear test numbers to plummet
January 23, 2019 - Protein-secreting device implanted in epileptic rats reduces seizures, improves cognition
January 23, 2019 - Reintroduction project recovers current wild population of green turtle in Cayman Islands
January 23, 2019 - Cancer survivors face greater financial burden related to medical bills
AHA: Can Daylight Saving Time Hurt the Heart? Prepare Now for Spring

AHA: Can Daylight Saving Time Hurt the Heart? Prepare Now for Spring

image_pdfDownload PDFimage_print

FRIDAY, Oct. 26, 2018 (American Heart Association) — Autumn temperatures may have just arrived, but it’s already time to “fall back” an hour.

For people who have heart-related problems, they may want to apply that extra 60 minutes in their day toward making healthier lifestyle changes. That’s because researchers say when daylight saving time returns, it brings with it a higher chance of having a stroke or heart attack.

Nov. 4 marks the end of daylight saving time, which was created as a way to save fuel during World War I. The United States formally adopted the practice in 1918, hopeful it would encourage consumers to take advantage of the extra sunlight to go shopping or just be outdoors more.

Hawaii and Arizona (aside from the Navajo Nation) are the only states that don’t observe daylight saving time. Other states hope to join them. California voters decide in November whether to eliminate the time change. In Florida, the state legislature approved a law to do away with the switch. Congress, however, has final say on whether any such change can happen.

Critics of daylight saving time say the practice is outdated. Many scientists say it’s also dangerous at least around the time when clocks “spring forward” and rob most of the population an hour of precious sleep.

The risk of having a stroke goes up 8 percent during the first two days after the beginning of daylight saving time, according to one Finnish study.

In Sweden, researchers found an average 6.7 percent greater risk of heart attack in the three days after the spring change. Inspired by that finding, a group of U.S. researchers conducted their own study and determined that heart attack risk jumped 24 percent the Monday after switching over to daylight saving time. That risk then tapered off over the remainder of the week.

By contrast, risk for heart attack dropped 21 percent on the Tuesday after the fall time change.

The study did not indicate what could be causing the additional heart attacks, but most of the patients were already vulnerable to heart disease, said Dr. Hitinder Gurm, an interventional cardiologist and one of the U.S. study’s authors.

“The people who have heart attacks are the same people who would have a heart attack without the time change,” said Gurm, the associate chief clinical officer at the University of Michigan. “It’s mostly people who have high blood pressure or diabetes. Generally, their risk factors are not under control.”

A combination of those risk factors and the disruption to the body’s internal clock, or its circadian rhythm, may be enough to throw the entire body off balance, said Michael Grandner, director of the Sleep and Health Research Program at the University of Arizona in Tucson.

“If you look under the car hood, you see lots of belts and gears and pistons and all sorts of parts that have their own rhythms, but which are related to each other,” he said. “The body has lots of similar rhythms, so anything from the rhythm of your blood pressure, to the rhythm of your body temperature, your hormones, how you metabolize blood sugar or consolidate memories. All of these systems are within the same body and many are at least indirectly related to each other.”

When daylight saving time kicks in, the process artificially changes the external environment without adjusting the body’s internal clock, essentially giving the body jet lag, Grandner said. The body then needs to reset and synchronize its internal systems.

“But when you get people who are ill or who already have some hormonal disruption or other biological problem that depends on a clock, that’s where you get problems,” he said. “It’s why you have things like a heart attack. There’s a rhythm to heart function, and when all of a sudden you jostle that rhythm for a heart already very sensitive or diseased or struggling to stay healthy, you disrupt its ability to regulate itself properly for a day or so.”

Daylight saving time resumes on March 10, 2019. Grandner said people can prepare for the spring shift, mainly by gradually winding down earlier at night a few days before the time change.

Gurm suggested preparing now — and by making bigger lifestyle changes.

“You have the whole winter to prepare for the spring change, so get in shape, get your cholesterol checked, get your blood pressure checked,” he said. “Don’t smoke, eat a heart-healthy diet. And to that, I would add, make sure you get enough sleep.”

© 2018 HealthDay. All rights reserved.

Posted: October 2018

Tagged with:

About author

Related Articles