Extreme heat changes how work happens. It affects how long crews can safely stay on task, how quickly strain builds, and how much visibility leaders have into rising risk.
That challenge sits at the center of two new initiatives La Isla Network launched in El Salvador and Brazil with support from The Rockefeller Foundation. VigiLife supports both efforts as the technology partner providing real-time physiological and environmental monitoring in the field.
As outlined in the official Rockefeller Foundation announcement the goal is to protect vulnerable workers, build stronger evidence, and support future heat-health policy.
How VigiLife supports this work
Both projects use SafeGuard®, VigiLife’s worker heat monitoring technology</a> through the SafeGuard® platform. According to the Rockefeller Foundation, SafeGuard supports the initiatives with visibility into rising physiological strain, along with alerts and reporting that help teams respond earlier.
SafeGuard gathers data from wearable and environmental sensors, turns those inputs into actionable insights, and helps teams see risk earlier. In active work environments, that kind of visibility matters. It gives researchers and field leaders a clearer view of what workers face as conditions change.
Why SafeGuard fits heat protection efforts
Heat protection depends on timing. The sooner teams can spot rising strain, the more options they have to intervene before the situation worsens.
SafeGuard supports that early awareness by combining physiological and environmental signals into a more immediate view of heat risk. That makes it well suited for work that requires both reliable data collection and field-ready usability. Teams need tools that hold up across changing environments and different worker populations without adding friction for the people using them.
Two projects, one growing challenge
In El Salvador, La Isla Network is working with a sugarcane mill to expand heat protections through rest, shade, and hydration protocols while scaling its PREP approach. The Rockefeller Foundation says the project will benefit 1,300 sugarcane workers and 5,850 family members.
In Rio de Janeiro, Brazil, La Isla Network is launching a field study focused on women working in the informal economy. The study will recruit up to 200 women across occupations and life stages and combine wearable physiological monitoring with environmental heat sensors to measure real-time heat strain during work and at home. The findings aim to support stronger municipal heat-health protections in Rio.
For VigiLife, these efforts show why worker heat monitoring technology needs to perform across very different conditions. Heat risk does not look the same in every job, climate, or community. The technology has to work across all of it.
Why this matters now
Extreme heat affects worker safety, productivity, and resilience at the same time. That raises the stakes for employers, researchers, and policymakers looking for better ways to respond.
VigiLife supports this work by helping turn heat strain into something teams can see and act on earlier. SafeGuard helps teams gather data in the field, identify rising risk, and build a stronger foundation for intervention.
As heat exposure grows across industries and regions, worker heat monitoring technology will play a bigger role in how organizations protect people and make decisions under pressure.
For more information, sign up for the VigiLife newsletter at https://vigilife.com/contact/ and follow us on LinkedIn @vigilife-inc/.