Much of this seems to relate to evolutionary biology. Despite the changes happening around us, our bodies remain the same.
Human bodies have been in their current form for roughly 300,000 years. Humans need to move. Strong evidence correlates increased movement with a reduced risk of developing cardiovascular conditions such as hypertension and high cholesterol, chronic diseases such as diabetes and certain types of cancer, and mental health conditions including depression and anxiety.
The more we move, the healthier we are. Moving every day doesn’t just make us feel better, it’s among the most far-reaching and effective forms of preventive medicine. Furthermore, sedentary activity is strongly linked to disease. More sitting time and less movement throughout the day can make a person less healthy. Both life expectancy (life span) and health profile (health span) are negatively affected by prolonged inactivity.
Despite incredible technological advances, the human body has basically required the same amount of movement for preventive health for more than 100,000 years. Unfortunately, technology and convenience often work against our health. With each technological victory, from the horse and buggy to the car, the airplane, the computer and now the smartphone, we move less. In today’s world, one can order meals, conduct relationships and even work while never taking a step. Studies of age-matched skeletons exhumed from before the industrial revolution — when people walked and moved more — show less knee arthritis than knees of today.
The past three years have rapidly accelerated this trend. Data on step counts during the pandemic have shown a decrease in NEAT behaviour (non-exercise activity thermogenesis), daily steps from everyday living. These aren’t steps from exercise, they are steps from walking to lunch, taking the stairs at work and walking to the subway or through the parking lot. While much attention is paid to exercise as a way of staving off ageing and disease, NEAT behaviours are also linked to disease prevention. Background steps add up over days, weeks and months. Although daily exercise is part of a healthy movement profile, the NEAT activities are the coals that keep the metabolic fire warm.
Right now, many of us aren’t getting enough. If you want to prove this to yourself, find a way to measure your steps such as the health app on your smartphone. If you work in a hybrid environment, check your steps on the days you commute. They’re likely much greater than the days you’re working from home while sitting next to your primary food source, the refrigerator.
Inactivity can translate into disease. In the United States, we spend US$4.3 trillion, 18 per cent of our GDP, on health care. Despite spending almost twice as much on average than other high-income countries, we are consistently ranked in the second tier of life expectancy among Western nations. As a nation, we aren’t especially healthy. Our most expensive two conditions, cardiovascular disease and diabetes, cost more than US$500 billion per year (including both health care spending and lost productivity) and are largely preventable with a healthy diet and regular movement. We’re spending the most and moving the least. A recent survey found working from home in the United States still is the norm for roughly 50 per cent of the work force but is less common in Europe and Asia, where 75 per cent to 80 per cent of workers are back in the office. As we move less, the associated health care costs will rise.
Another important consideration of remote work is mental health. Homo sapiens are social animals. Much like the biological imperative to move, we also need to interact. Despite advances in technology, our brains thrive with in-person relationships. When in person, we learn to read body language, understand unstated nuances in communication and work more effectively with others. Studies have shown increased rates of depression and anxiety during remote work. Even if it’s easier, there is a sense of isolation that develops when real, in-person communication is substituted with virtual interaction. EEG studies of the brain found that face-to-face interactions produced stronger and longer-lasting psychological connections than virtual ones.
This is not to say that everyone who works from home is facing a health crisis. There are many people who are thriving in the remote work world. Parents with children have more time to spend with their families, people have more time to walk their dogs and sometimes even go to exercise classes.
In my office, I’ve treated patients who are making the most of their increased time at home and living more active and healthier lifestyles. But I also see patients who have developed back and neck pain and become less healthy over the past few years. National trends back this up.
In some form, remote work is here to stay. Looking at the data from the past three years, there are both benefits and pitfalls to working from home. The best way forward might be a hybrid of in-person and remote work to ensure socialisation and daily movement. If you’re working fully remote, set up specific meetings and times to exercise that will keep you accountable and plugged in. If your company calls for a return to in-person work, at least part-time, recognize this as favourable for your long-term health.
Jordan D. Metzl, M.D., is a sports medicine physician at Hospital for Special Surgery in New York City and the author of five books on the intersection of movement and health, including The Exercise Cure.
This article originally appeared in The New York Times.
Written by: Dr Jordan Metzl
©2023 THE NEW YORK TIMES
