Tian Zhao, a PhD student at the University of Alberta, spent three months in the Western Cape, South Africa, conducting research on how extreme heat affects the mental health of local adults. Zhao's study focuses on the connection between heat exposure and depression, while also considering factors such as sleep disturbances and food insecurity.
Read More
Zhao's interest in mental health research stems from her previous work in prenatal and postnatal health. Her fieldwork in South Africa was made possible through the International Doctoral Research Award, which supports doctoral students from Canadian universities conducting research in the Global South.
As climate change continues to raise global temperatures, Zhao highlights that its potential impact on mental health is frequently overlooked. She notes that extreme heat and poor air quality can exacerbate depression rates, particularly in regions like South Africa that face intense heat challenges. "I’m looking at how extreme heat causes depression, but via different pathways," Zhao stated.
Extreme heat can diminish food accessibility, affecting mental health. High temperatures can hinder crop growth, leading to food shortages and increased anxiety over food security for families. The heat can also hinder employability, as outdoor workers may struggle to cope with excessively high temperatures. Additionally, disrupted sleep during hot conditions exacerbates risks of depression and other mental health issues.
To gather data, Zhao collaborated with community data collectors, using questionnaires to assess demographics, depression status, food insecurity, and sleep quality. Zhao emphasized the importance of giving back to the communities involved in her research, organizing educational sessions on mental health and coping strategies for extreme heat.
An encounter with a local woman left Zhao contemplating the immediate needs of communities. The woman questioned Zhao about how she could assist her community without delay, prompting Zhao to reflect on the gap between research and practical support. Zhao recognizes that climate change poses ongoing challenges, underscoring the need for resilience and awareness of its consequences on mental health and the economy.
Currently, participating in community activities and fostering social connections are coping strategies Zhao recommends to mitigate adverse mental health effects. "I hope my research in this specific community could apply to similar settings elsewhere," she remarked.
While her work is focused on South Africa, it aims to raise broader awareness that could influence future research on mental health in hot climates, as cultural, economic, and social factors shape community responses to extreme heat. Zhao plans to expand her future research to include various countries and explore mental health issues among immigrants and visible minority groups in Canada.