Could Extreme Temperatures Lead to a 50% Surge in Depression?

A new study from the University of Adelaide has revealed that rising temperatures may significantly worsen mental and behavioural disorders (MBD), such as depression and schizophrenia, by up to 50% by the year 2050.

Published in Nature Climate Change, the research highlights the urgent need for action to protect mental health as the global climate continues to warm.

Heat-Related Mental Health Burden on the Rise

The study found that high temperatures currently contribute to an annual loss of 8,458 disability-adjusted life years (DALYs) in Australia. This accounts for approximately 1.8% of the country’s total burden from mental and behavioural disorders.

Young people, particularly those aged between 15 and 44, are among the most affected. The majority of these health losses stem from individuals already living with poor mental health.

Climate Change and Mental Wellbeing

Lead author Professor Peng Bi from the University’s School of Public Health emphasized the growing concern around climate change and mental health.

“The detrimental impacts of climate change on good mental health and emotional wellbeing are increasingly recognised worldwide, and they will worsen unless proactive steps are taken,” said Professor Bi.

Mental and behavioural disorders include a wide range of conditions affecting emotional regulation, thinking, and behaviour. These include anxiety, depression, bipolar disorder, schizophrenia, and substance use disorders.

Greater Risks in Warmer Regions

The study also found that regions closer to the equator, which experience higher average temperatures, are more vulnerable to the mental health impacts of climate change.

“These results highlight the critical need for targeted public health strategies to manage the mental health challenges posed by a warming climate,” Professor Bi added.

Conclusion

Dr. Jingwen Liu noted that the impact of climate change on mental health will exceed the effects of population growth alone. The researchers urge governments and healthcare systems to act swiftly.

They recommend:

• Developing heat-health action plans
• Strengthening healthcare systems to meet rising mental health demands
• Implementing local initiatives, such as green spaces and community programmes, to build resilience
• Providing focused support for vulnerable populations during heatwaves

As the climate crisis escalates, experts stress the importance of preparing now to safeguard mental wellbeing for future generations.

Source: Inputs from various media Sources