When working in the heat, sometimes “I’m fine” means “I’m not.”
In maritime operations, workers may say they’re fine because they don’t want to slow the crew down, look weak, leave the job unfinished, or create more work for someone else. It could be a new employee trying to prove themselves, an experienced worker relying on old habits, or a crew member who doesn’t fully realize how heat is affecting their body.
Heat stress is dangerous because it’s more than a temperature issue. It’s a judgment issue.
If you've spent any time working in the elements, you've probably seen a worker wave off what could turn into a serious health emergency. Maybe they insisted they were fine, or brushed it off as being a little tired, or figured they were young enough and tough enough to push through.
That kind of thinking can be dangerous, and in extreme cases, deadly. For maritime supervisors and employees, it’s important to understand what heat illness can look like before symptoms become serious.
We’ve covered this topic in Longshore Insider: Just Stay Cool: Preventing Heat Stress at your Facility. This article takes a different angle, though. What are some everyday misconceptions that could lead to a workplace heat injury, especially when a worker insists they’re okay?
Many workers have heard that heat stroke means a person stops sweating. While that can happen, sweating doesn’t rule out a heat emergency. According to NIOSH, heat stroke symptoms include confusion, altered mental status, slurred speech, loss of consciousness, hot dry skin or profuse sweating, seizures, very high body temperature, and possible fatality if treatment is delayed.
Did you catch that? Profuse sweating. That’s critical for supervisors to understand.
If a worker shows any combination of heat-related symptoms, your response shouldn’t depend on whether they’re sweating. The response should be immediate, from either onsite medical staff or emergency responders. However, if someone shows more serious signs of heat stroke, such as slurred speech or loss of consciousness, OSHA’s heat illness first aid guidance says to call 911 immediately and cool the worker with ice or cold water until help arrives.
In many maritime environments, emergency response can be complicated by location. An employee may be working in a place that’s hard to reach quickly. That’s why it’s so important to recognize the signs of heat illness early.
So, remember, sweating doesn’t always mean someone is okay. If they seem confused, shaky, faint, or not like themselves, make sure they get help right away.
By the time you feel thirsty, you may already be dehydrated.
It can be easy to skip a water break when you’re tucked in a hard-to-reach corner, tools in hand. It’s a hassle to remove gear, climb down, walk to a water station, and then have to climb back into position. Some workers don’t want to appear weak or like they need special treatment. Some new employees may skip breaks because they want to prove they can keep up. A seasoned worker may assume they know their limits.
Maritime workers, both supervisors and employees, need to build water breaks into the daily workflow. Water should be accessible, breaks should be expected, and crews should understand that drinking water is also part of their job, not a break.
It’s even more important for those working in crawl spaces, at height, in remote areas, or anywhere water breaks may feel harder to take. If a crew’s plan depends on thirst alone, there isn’t a plan.
Youth isn’t immunization against the sun.
OSHA warns employers not to assume that new workers can work safely in warm or hot conditions. Young, seemingly fit workers are also susceptible to heat-related illness.
New workers are already dealing with a completely unfamiliar environment and expectations. Heat can feel like just another obstacle to overcome. Younger workers often want to make a good impression and prove they can keep up. All the more reason for supervisors to pay special attention to younger employees.
The first week on the job isn’t the time to let a worker prove their toughness in the heat. It’s the time to lead by example and set the tone for smarter, safer work.
Experience helps, but in no way does it guarantee heat tolerance.
A long-time worker may know the yard, the equipment, and the work. That doesn’t mean their body is equipped to stave off heat exposure. Our bodies change with age, and the ability to work in the heat isn’t a given. Workers can lose heat tolerance after time away, cooler weather, illness, or vacation.
NIOSH recommends acclimatizing new and returning workers over a 7 to 14 day period, with new workers generally needing more time to acclimatize than workers who have already had some heat exposure.
Supervisors should not assume that years of experience equal readiness for today’s conditions. “I’ve done this before” isn’t the same as “my body is ready for this heat today.”
Heat stress happens indoors, too.
According to OSHA, hazardous heat exposure can happen indoors or outdoors during any season. Heat exposure isn’t limited to forecasted temperatures. Heat can build inside vessels, tanks, enclosed compartments, shops, equipment cabs, and areas with limited airflow.
Hot work can raise the temperature around a task. PPE can trap body heat. Steel surfaces can hold and radiate heat. Even indoor work in cargo yards and terminals can expose workers to hot, humid areas.
Cooler outdoor temperatures don’t mean heat safety should take a back seat. Supervisors still need to recognize the indoor conditions that can contribute to heat-related illness. Hot, enclosed, and poorly ventilated work areas, especially when paired with physically demanding work and heat-trapping PPE, can create real problems.
This misconception sits at the heart of the problem.
Maritime workers often take pride in finishing the job. That pride can be valuable. It can also make workers reluctant to speak up when something is wrong.
A worker may say they’re fine because they don’t want to slow the crew down or look weak. A new worker may be even less likely to report symptoms due to fear. An experienced worker may believe they can push through because they’ve done it before.
Supervisors should listen to workers, but they should also pay attention to what they can see.
If a worker is confused, moving poorly, struggling to communicate, becoming unusually irritable, stumbling, vomiting, or showing signs of distress, “I’m fine” should carry little weight. In heat, visible changes in behavior or performance should be assessed and treated immediately.
“It’s not about how tough a worker is,” said Jason Lake, AEU’s senior vice president and director of loss control. “When conditions are dangerously hot, supervisors can’t rely only on a worker saying they feel fine. They need to watch for warning signs, step in early, manage heat exposure, and make sure the entire crew works safely.”
Fatigue is common in maritime work. That’s exactly why heat stress can sometimes go unnoticed.
An overheated worker doesn’t usually collapse right away. They may slow down, speak less, get irritable, make small mistakes, or just look generally worn out. In a demanding work environment, those symptoms can look like the result of hard workday.
A worker inside a vessel, on a steel deck, in a poorly ventilated area, or wearing heavy PPE may be dealing with more than fatigue. They may be showing symptoms of heat exhaustion or worse. NIOSH identifies heat exhaustion symptoms that include headache, nausea, dizziness, weakness, irritability, thirst, heavy sweating, elevated body temperature, and decreased urination.
Supervisors don’t need to diagnose every symptom. However, they do need to challenge the assumption that a worker who looks “off” is only tired. A worker who says “I’m just tired” while showing signs of heat exhaustion should be assessed.
Supervisors should challenge workers’ assumptions, especially when it comes to heat.
Before and during work in hot environments, supervisors should ask:
Does anyone look confused, shaky, unsteady, irritable, or unlike themselves?
Has everyone had water and a real chance to cool down?
How are new or returning workers handling the heat?
Have we checked how hot it is in every work area?
Does the crew know it is okay to speak up?
“Ask the simple questions, but also pay attention to what you see,” Lake said. “Workers may not realize how much the heat is affecting them. Stepping in early can keep a regular workday from ending with a trip to the hospital, or worse.”
The real risk is waiting too long to act.
Heat stress is easy to miss because it can look like something else. A worker may seem tired, frustrated, quiet, or determined to finish the job. They may say they’re fine because they don’t want to slow anyone down.
The problem is that each misconception gives people one more reason to wait.
Supervisors shouldn’t wait for a worker to collapse before taking heat seriously. Sweating doesn't mean a worker is in the clear. Workers shouldn’t wait on thirst before drinking water. Being young or experienced doesn’t give anyone armor against the heat. It can still get dangerously hot while working indoors. And sometimes, “I’m just tired” may mean something more is going on.
Heat illness can get serious fast. Know what to look for, take warning signs seriously, and help workers get home safely.