• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Leadership

Science says working long hours is seriously bad for your health

Claire Zillman
By
Claire Zillman
Claire Zillman
Editor, Leadership
Down Arrow Button Icon
Claire Zillman
By
Claire Zillman
Claire Zillman
Editor, Leadership
Down Arrow Button Icon
August 20, 2015, 2:00 PM ET
72656499
Businessman with arm around male coworker at deskPhotograph by Getty Images/Altrendo

Seriously: stop working so much, for your health’s sake.

A new study of 600,000 individuals in Australia, the United States, and Europe published in the Lancet, a United Kingdom-based medical journal, found that people who more more than 55 hours per week or more have a 33% greater risk of stroke and a 13% greater risk of coronary heart disease.

The study concludes that “more attention should be paid to the management of vascular risk factors in individuals who work long hours.”

The study is the largest so far to examine the relationship between working hours and cardiovascular health and is especially noteworthy because it points to stroke as a risk of working long hours. Earlier studies have linked heart attacks to excessive work.

There are critics of the study, though. Stephen Kopecky, a professor of medicine in the division of cardiology at the Mayo Clinic, told The New York Times, that the analysis did not fully account for the effects of cholesterol, family history, and blood pressure in all cases, so it is possible that long hours are not the only cause of the increased health risks.

About the Author
Claire Zillman
By Claire ZillmanEditor, Leadership
LinkedIn iconTwitter icon

Claire Zillman is a senior editor at Fortune, overseeing leadership stories. 

See full bioRight Arrow Button Icon

Latest in Leadership

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

NewslettersCEO Daily
The new CEO leading Saks Global through bankruptcy follows a management philosophy of ‘leading with love’
By Diane BradyJanuary 15, 2026
4 hours ago
Photo of a job applicant being interviewed
EconomyJobs
Desperate job seekers are abandoning the idea of a ‘dream job’—but an economist warns bosses about what could happen next 
By Jacqueline MunisJanuary 15, 2026
4 hours ago
sharma
CommentaryTraining
AI will infiltrate the industrial workforce in 2026—let’s apply it to training the next generation, not replacing them
By Kriti SharmaJanuary 15, 2026
5 hours ago
Successwork-life balance
Despite a $45 million net worth, Big Bang Theory star still works tough, 16-hour days—he repeats one mantra when overwhelmed
By Orianna Rosa RoyleJanuary 15, 2026
5 hours ago
Young girl uses AI virtual assistant to do schoolwork.Concept of Artificial Intelligence and Futuristic technology
AIEducation
Teachers decry AI as brain-rotting junk food for kids: ‘Students can’t reason. They can’t think. They can’t solve problems’
By Eva RoytburgJanuary 15, 2026
5 hours ago
Healthbenefits
The head of marketing at Slate posted on LinkedIn requesting cleaning services as a benefit at her company. The next day, HR answered her call
By Sydney LakeJanuary 15, 2026
6 hours ago

Most Popular

placeholder alt text
Personal Finance
Peter Thiel makes his biggest donation in years to help defeat California’s billionaire wealth tax
By Nick LichtenbergJanuary 14, 2026
21 hours ago
placeholder alt text
AI
'Godfather of AI' says the technology will create massive unemployment and send profits soaring — 'that is the capitalist system'
By Jason MaJanuary 12, 2026
3 days ago
placeholder alt text
Success
Despite his $2.6 billion net worth, MrBeast says he’s having to borrow cash and doesn’t even have enough money in his bank account to buy McDonald’s
By Emma BurleighJanuary 13, 2026
2 days ago
placeholder alt text
AI
Being mean to ChatGPT can boost its accuracy, but scientists warn you may regret it
By Marco Quiroz-GutierrezJanuary 13, 2026
2 days ago
placeholder alt text
Economy
Jamie Dimon warns $38 trillion national debt is going to 'bite': 'You can't just keep borrowing money endlessly'
By Eleanor PringleJanuary 14, 2026
1 day ago
placeholder alt text
Future of Work
'Microshifting,' an extreme form of hybrid working that breaks work into short, non-continuous blocks, is on the rise
By Nick LichtenbergJanuary 13, 2026
2 days ago

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.