# What 1,000 Indian Women Workers Reveal About Heat

> A groundbreaking study tracks how extreme heat damages health, wages, and sleep in workers the world ignores.
- Title: What 1,000 Indian Women Workers Reveal About Heat · TIME
- Summary: A groundbreaking study tracks how extreme heat damages health, wages, and sleep in workers the world ignores. Heat's true cost isn't just death counts, it's…
- Keywords: extreme heat, women workers, india, informal economy, commhats study, harvard, self employed women's association, heat adaptation, occupational health, climate change, wage loss, heat stress
- Source: TIME — https://time.com/article/2026/09/19/what-1000-women-workers-can-teach-us-about-surviving-extreme-heat
- Author: Satchit Balsari
- Published: 2026-09-19T10:00:03.823+00:00
- Read time: 1 min
- Topics: extreme heat, women workers, india, informal economy, commhats study, harvard, self employed women's association, heat adaptation, occupational health, climate change, wage loss, heat stress
## Heat is killing more than we know
The UN confirmed the world has failed to limit warming to 1.5°C. Meanwhile, NPR found extreme heat killed nearly five times more Americans than official records showed.
## Heat affects far more than death
Each U.S. heat dome hit over 100 million people. Construction workers, delivery drivers, farm workers, the unhoused, and the poor suffered from heat exposure that damaged their health, wages, and well-being.
## A thousand women measure the damage
The Self Employed Women's Association partnered with Harvard to recruit 1,000 Indian women workers, street vendors, waste recyclers, farmers, to track how heat affects their health, wages, and sleep for 13 months.
## Early findings show devastating losses
The CommHATS study found workers suffered significant wage losses on hot days, shortened sleep, and high cardiac stress. The data reveals heat's toll goes far beyond what temperature readings show.

> devastating wage losses on hot days, shortened sleep spans, and high cardiac stress
## The poor pay the price themselves
In India, 90% of workers are informally employed with no employer accountability. Workers change hours, reallocate savings, and buy their own cooling solutions while global climate funds fail to reach them.
## Heat steals more than lives
Millions survive extreme heat but cannot thrive. Heat damages organs, shortens sleep, cuts wages, and forces impossible choices between childcare and work.

> life is compromised and diminished
## Key takeaway

Heat's true cost isn't just death counts, it's the daily suffering of billions of workers whose wages, sleep, and organs are damaged by exposure, and who must pay for their own survival.