JUN 08, 2020 8:00 PM PDT

Long Working Hours Associated with Ischemia in Men

WRITTEN BY: Lawrence Renna

According to a recent study published in the Journal of the American Heart Association's Stroke, males who worked long hours for at least 10 years showed an increased risk for ischemic heart disease and stroke. The association was not observed in females with long working hours.

Ischemia is defined as "reduced blood supply". Ischemic heart disease is characterized by the reduction of blood flow to the heart. In most western countries, ischemic heart disease is the most common cause of death. Ischemia can also lead to stroke, due to reduced or blocked blood flow to the brain.

The researchers assessed the effects of long working hours, duration of long working hours, and risk factors including age, sex, body mass index, smoking, blood pressure, diabetes, and family history of heart disease. The sample population data was collected from CONSTANCES, an epidemiological surveillance tool, implemented through a partnership with the French institute for public health surveillance.

Long working hours were defined as working more than 10 hours a day for at least 50 days per year. Those who had long working hours for 10 or more years were showed a significant association with ischemic heart disease. The authors of the study also found that this association was even stronger if they excluded those who experienced angina pectoris. Furthermore, the association was magnified in white-collar workers under the age of 50 years.

Interestingly, the association between long working hours and ischemic heart disease was not found among women. The study says:

"These observed differences have several possible explanations, including lack of statistical power given the low numbers of ischemic heart disease events among women with long working hours in our sample, and exclusion of participants with predominantly part-time job may also contribute to these differences (more women with part-time jobs)." "The observed sex differences in our study and others are worth future exploration to examine other potential explanations including differently gendered work and sex-specific worker survivor effects, changes in work trajectory attributable to child-rearing, diagnostic biases, and other cultural and biological differences."

To conclude, the study claims to have discovered via this large-scale epidemiological study a "moderate yet robust association between cumulative exposure to long working hours and occurrence of ischemic heart disease among men."

 

Sources: Stroke, Healio.com, ScienceDaily.com, CONSTANCES

 

About the Author
  • Hello! I am a scientist currently living in Southern California, although I am originally from the east coast. I received my B.S. in Chemistry from Northeastern University in 2012, and my Ph.D. in Chemistry from the University of Massachusetts Amherst. I also had a postdoctoral appointment at the University of California, Irvine. I have written 25+ peer-reviewed articles, several patents, and one book chapter. I am a reviewer for scientific manuscripts, and a freelance editor and writer. Outside of science, I enjoy spending time with my family, training Jiu-Jitsu, and baking sourdough bread. I am happy to be writing for LabRoots.
You May Also Like
JUL 04, 2020
Cardiology
Discovering a New Signal Junction Controlling Pulmonary Arterial Hypertension
JUL 04, 2020
Discovering a New Signal Junction Controlling Pulmonary Arterial Hypertension
Pulmonary Arterial Hypertension (PAH) is a progressive and fatal disease characterized by the muscularization of blood c ...
JUL 12, 2020
Cardiology
A Beneficial Microbe Can Reduce the Risk of Artery Disease
JUL 12, 2020
A Beneficial Microbe Can Reduce the Risk of Artery Disease
Trillions of microbes call our bodies home, and the ones that live in the gut can have a powerful impact on human health ...
SEP 11, 2020
Health & Medicine
Trans Fat Regulations Protect Three Billion People Worldwide
SEP 11, 2020
Trans Fat Regulations Protect Three Billion People Worldwide
The World Health Organization (WHO) recently released a progress report on its five-year initiative for the global elimi ...
OCT 08, 2020
Cardiology
Omega-3 Enriched Chicken as a Fish Alternative for Omega-3 Fatty Acids
OCT 08, 2020
Omega-3 Enriched Chicken as a Fish Alternative for Omega-3 Fatty Acids
We have all seen those articles telling us to get more omega-3 fatty acids in our diet. Many studies point to these spec ...
OCT 22, 2020
Cardiology
Using Liposomes to Deliver Repair Packages to the Heart
OCT 22, 2020
Using Liposomes to Deliver Repair Packages to the Heart
The secret to any successful drug is not just its ability to treat a disease but its ability to target the disease exclu ...
OCT 27, 2020
Cardiology
Boron Could Prevent Myocardial Fibrosis and Assist in Recovery
OCT 27, 2020
Boron Could Prevent Myocardial Fibrosis and Assist in Recovery
When you pass by the nutrition section at the local grocery store, there is a chance you’ll come across row upon r ...
Loading Comments...