Climate Change Drives Physical Inactivity and Health Risks Higher

As the effects of climate change become more apparent, one often-overlooked consequence is the impact on human activity levels. With rising global temperatures, we are not only experiencing hotter days but also a potential decline in physical activity.

This shift poses significant risks, as increased inactivity is closely linked to decreased productivity and higher rates of chronic illness and death. Understanding this connection is essential, as it underscores the urgent need to address the health risks of climate change and promote healthier lifestyles in an increasingly challenging environment.

The lack of exercise in adults, or people ages 18 and above, is already a leading cause of non-communicable disease mortality, responsible for around 5% the total deaths in adults.

According to the World Health Organisation, one in three adults globally fails to meet its guidelines for weekly exercise, which call for a minimum of 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity physical activity.

These levels of deaths from inactivity are causing US $54 billion in yearly healthcare costs and generate $15 billion in productivity losses.

The study, published in the Lancet Global Health Journal, titled “Effects of climate change on physical inactivity: a panel data study across 156 countries from 2000 to 2022,” examined data gathered by 156 countries between 2000 and 2022.

Researchers examined how adult physical inactivity is linked to different annual temperature ranges. They applied the results to future climate projections under various warming scenarios to estimate how adult inactivity might change.

The study then linked adult inactivity to death rates to quantify the additional number of deaths that will occur and their potential economic losses from diminished productivity based on each country’s economy and workforce size.

The study reveals that each month with an average temperature exceeding 27.8°C is associated with a 1.4% increase in physical inactivity. This rise is even more pronounced in low- and middle-income economies, where inactivity increases by 1.9%. By the year 2050, the study projects physical inactivity will increase by 1% in a low-emissions scenario, 1.2% in a medium-emissions scenario, and 1.8% in a high-emissions scenario.

Areas such as Central America, the Caribbean, eastern sub-Saharan Africa, and Southeast Asia could see inactivity rates rise by over 4%, resulting in an estimated 470,000 to 700,000 additional deaths each year. Globally, productivity loss will also climb to $3.7 billion.

The study notes that projections of warming temperatures require climate adaptation measures such as heat-resilient urban spaces, support for affordable air-conditioned exercise facilities, and an information campaign regarding the risks from heat, which could help mitigate its impact, alongside more ambitious actions to slash carbon emissions.

Learn more about the study by browsing the link below.