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Excess Work Hours + Family Demands = Higher BMI

Excess Work Hours + Family Demands = Higher BMI

A new study discovers working long hours while raising a family can take a toll on the body mass index of individuals in dual-earner families.

Dr. Amit Kramer, a University of Illinois labor and employment relations professor also found that an increase in the work or life demands of one spouse is likely to affect the health outcomes of the other.

“Work and family are important to many people, and most of life is spent meeting the demands and responsibilities of both,” he said.

“We also gain meaning and significance from these two domains. As such, it’s not surprising that the circumstances and demands of those domains affect an individual’s health, as well as their general well-being. The big question is how much of an impact it has.”

In the paper, which was co-written with University of Illinois graduate student WonJoon Chung, the researchers used a nationally representative sample of more than 4,200 individuals who were part of a dual-earner family between 1994 and 2010.

Investigators explored how work and family demands affected an individual’s body mass index.

Although most people gain weight as they grow older, the researchers found consistent evidence that the long-term physical health of individuals — as estimated by a change in BMI over time — is negatively affected by an increase in work hours and the birth of each additional child.

“While the effects of work and family demands on BMI are small, they are statistically and practically significant,” Kramer said.

“Medical studies have consistently shown that even small changes in BMI have a negative impact on individual health outcomes such as coronary heart disease, diabetes, and lung functioning, to name a few.”

When either an individual or their spouse works long hours the family has less time to engage in healthy activities such as exercising, eating healthy, and sleeping. Kramer, however, also believe the strain associated with an increased workload is related to increased BMI.

The paper also considered whether the availability of flexible work arrangements had a moderating effect on the relationship between work demands and physical health.

The results indicate that flexible work arrangements had no effect on BMI, most likely because reducing one’s BMI requires actual behavioral changes — more sleep and exercise, for example. But just because flexible work arrangements have no effect on BMI doesn’t mean that employers should scrap the perk, Kramer says.

“Other research shows true flexible work arrangements — ones that give the worker autonomy and flexibility on when, where and how to do the job — have been shown to improve employee well-being as well as business outcomes,” he said.

“It’s possible that flexible work arrangements are directly affecting other health-related outcomes that may provide employees with more opportunities for non-work time. That alone can reduce stress and be used to renew one’s energy level.”

Kramer believes that employers should understand that proactive policies to enhance worker health will reduce employee health costs.

That is, employers should know the costs that work and family demands impose on employees as well as the impact it has on their health.

“If employers care about their employees, their insurance costs or other health-related costs such as absenteeism, turnover, job performance, and work satisfaction, this should make them think more comprehensively about their employees’ needs and demands,” he said.

“It also would help them with creating cost-effective policies to address the needs of their employees not just as individuals, but as members of a family.”

Workers also need to know that their time is finite, and if their spouse is putting in long hours, it’s likely going to affect them, too.

“Interdependencies between family members are important to consider when making work-related decisions, not just family decisions,” Kramer said.

“We think about family decisions as interdependent: Should we have another child? Should we send a child to a day care or should one of us stay at home? But we tend to think of work decisions as individuals: Should I work another hour? Ask for this challenging assignment?

“Decisions that increase or decrease the demands and responsibilities of work or home also have a direct effect on our spouse’s ability to meet work, family and personal needs.”

Workers also need to know that different organizations may offer better work, family and life policies and benefits, Kramer said.

“More and more employees think about work not just in terms of their career but also more holistically, in terms of their success as a family,” he said.

“That means their health and well-being greatly depend on this combination of their spouse and their respective workplaces.”

The paper will be published in the Journal of Applied Psychology.

Source: University of Illinois

Excess Work Hours + Family Demands = Higher BMI

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2018). Excess Work Hours + Family Demands = Higher BMI. Psych Central. Retrieved on September 25, 2020, from
Scientifically Reviewed
Last updated: 8 Aug 2018 (Originally: 25 Feb 2015)
Last reviewed: By a member of our scientific advisory board on 8 Aug 2018
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