Breaking News
January 19, 2019 - 4.6 percent of Massachusetts residents have opioid use disorder
January 19, 2019 - New study suggests vital exhaustion as risk factor for dementia
January 19, 2019 - New antibiotic discovery heralds breakthrough in the fight against drug-resistant bacteria
January 19, 2019 - Ural Federal University scientists synthesize a group of multi-purpose fluorophores
January 19, 2019 - Researchers identify new therapeutic target in the fight against chronic liver diseases
January 19, 2019 - Preparation, characterization of Soyasapogenol B loaded onto functionalized MWCNTs
January 19, 2019 - FDA Approves Ontruzant (trastuzumab-dttb), a Biosimilar to Herceptin
January 19, 2019 - Tobacco use linked with higher use of opioids and sedatives
January 19, 2019 - Study delves deeper into developmental dyslexia
January 19, 2019 - Anti-vaccination movement one of the top health threats in 2019 says WHO
January 19, 2019 - Newly developed risk score more effective at identifying type 1 diabetes
January 19, 2019 - Highly effective protocol to prepare cannabis samples for THC/CBD analysis
January 19, 2019 - Prinston Pharmaceutical Inc. Issues Voluntary Nationwide Recall of Irbesartan and Irbesartan HCTZ Tablets Due to Detection of a Trace Amount of Unexpected Impurity, N-Nitrosodiethylamine (NDEA) in the Products
January 19, 2019 - How does solid stress from brain tumors cause neuronal loss, neurologic dysfunction?
January 19, 2019 - $14.7 million partnership to supercharge vaccine development
January 19, 2019 - Ian Fotheringham receives Charles Tennant Memorial Lecture award
January 19, 2019 - Brain vital signs detect neurophysiological impairments in players with concussions
January 19, 2019 - Lack of job and poor housing conditions increased likelihood of people attending A&E
January 19, 2019 - Novel targeted drug delivery system improves conventional cancer treatments
January 19, 2019 - Rutgers study finds gene responsible for spread of prostate cancer
January 19, 2019 - Complications Higher Than Expected for Invasive Lung Tests
January 19, 2019 - 3-D printed implant promotes nerve cell growth to treat spinal cord injury
January 19, 2019 - Automated texts lead to improved outcomes after total knee or hip replacement surgery
January 19, 2019 - Poor cardiorespiratory fitness could increase risk of future heart attack, finds new study
January 19, 2019 - Drinking soft drinks while exercising in hot weather may increase risk of kidney disease
January 19, 2019 - Formlabs 3D prints anatomical models
January 19, 2019 - Heart-Healthy Living Also Wards Off Type 2 Diabetes
January 19, 2019 - Teaching Kids to Be Smart About Social Media (for Parents)
January 19, 2019 - Metabolite produced by gut microbiota from pomegranates reduces inflammatory bowel disease
January 19, 2019 - Researchers examine how spray from showers and toilets expose us to disease causing bacteria
January 19, 2019 - Behavioral experiments confirm that additional neurons improve brain function
January 19, 2019 - New study compares performance of real-time infectious disease forecasting models
January 19, 2019 - Obesity can be risk factor for developing renal cell carcinoma, confirms study
January 19, 2019 - New regulation designs on cigarette packs direct smokers’ attention to health warnings
January 19, 2019 - QIAGEN receives first companion diagnostic approval in Japan
January 19, 2019 - Study explores role of Dunning-Kruger effect in anti-vaccine attitudes
January 19, 2019 - Newly identified subset of immune cells may be key to fighting chronic inflammation
January 19, 2019 - New immune response regulators discovered
January 18, 2019 - Poor blood oxygenation during sleep predicts chance of heart-related death
January 18, 2019 - First international consensus on the diagnosis and management of fibromuscular dysplasia
January 18, 2019 - Rapid resistance gene sequencing technology can hasten identification of antibiotic-resistant bacteria
January 18, 2019 - Researchers develop artificial enzymatic pathway for synthesizing isoprenoids in E. coli
January 18, 2019 - Scientists advise caution in immunotherapy research
January 18, 2019 - How children across the world develop language
January 18, 2019 - Columbia Medical Student Receives McDonogh Scholarship
January 18, 2019 - Secretive ‘Rebate Trap’ Keeps Generic Drugs For Diabetes And Other Ills Out Of Reach
January 18, 2019 - Plant based diet could be the best option for the planet says commission
January 18, 2019 - New conservation practice could reduce nitrogen from agricultural drainage, study shows
January 18, 2019 - UIC researchers receive $1.7 million NCI grant to study Southeast Asian fruit
January 18, 2019 - New study determines the fate of DNA derived from genetically modified food
January 18, 2019 - Scientists develop new gene therapy that prevents axon destruction in mice
January 18, 2019 - Study finds critically low HPV vaccination rates among younger adolescents in the U.S.
January 18, 2019 - Brain cells involved in memory play key role in reducing future eating behavior
January 18, 2019 - Risk for Conversion of MS Varies With Different Therapies
January 18, 2019 - Investigational cream may help patients with inflammatory skin disease
January 18, 2019 - Medical school news office receives six writing awards | News Center
January 18, 2019 - County By County, Researchers Link Opioid Deaths To Drugmakers’ Marketing
January 18, 2019 - Research reveals risk for developing more than one mental health disorder
January 18, 2019 - Scientists discover a dramatic pattern of bone growth in female mice
January 18, 2019 - Study finds link between lengthy periods of undisturbed maternal sleep and stillbirths
January 18, 2019 - New nuclear medicine method could improve detection of primary and metastatic melanoma
January 18, 2019 - Combination therapy shows high efficacy in treating people with leishmaniasis and HIV
January 18, 2019 - Health Tip: Don’t Ignore Changes in Skin Color
January 18, 2019 - Dietary Recommendations for Healthy Children
January 18, 2019 - Eliminating the latent reservoir of HIV
January 18, 2019 - Pain From The Government Shutdown Spreads. This Time It’s Food Stamps
January 18, 2019 - Newly discovered regulatory mechanism helps control fat metabolism
January 18, 2019 - New rapid blood tests could speed up TB diagnosis, save the NHS money
January 18, 2019 - Researchers develop intelligent system for ‘tuning’ powered prosthetic knees
January 18, 2019 - Monoclonal antibody pembrolizumab prolongs survival in patients with squamous cell carcinoma
January 18, 2019 - Microrobots could one day deliver drugs inside the body
January 18, 2019 - Maintaining an active lifestyle in older age could prevent dementia
January 18, 2019 - New research detects mosquito known to transmit malaria for the first time in Ethiopia
January 18, 2019 - Researchers identify new genes linked to development of age-related macular degeneration
January 18, 2019 - Computerized method helps better protect pharma patents
January 18, 2019 - New guidelines to make swallowing safer for people in Australian nursing homes
January 18, 2019 - Lumex Instruments’ RA-915AM monitor installed at Hg treatment plant in Almadén, Spain
January 18, 2019 - ACCC survey finds multiple threats to growth of cancer programs
January 18, 2019 - Meeting the challenge of engaging men in HIV prevention and treatment
January 18, 2019 - Furloughed Feds’ Health Coverage Intact, But Shutdown Still Complicates Things
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