What is heat stress
Heat stress occurs when the human body is unable to remove excess heat, resulting to an email increase in the body's temperature causing heat -related illnesses such as heat cramps, heat exhaustion and heat stroke
Why This Matters
Heat stress is not just about feeling uncomfortable. It can lead to dehydration, heat exhaustion, heat stroke, organ failure, and even death. In Singapore's hot and humid environment, every worker is at risk, especially those working outdoors or wearing Personal Protective Equipment (PPE).
Your body is your most important tool. Protect it.
Know the Warning Signs
Early Symptoms
Excessive sweating
Thirst and dry mouth
Fatigue or weakness
Headache
Dizziness
Muscle cramps
Serious Symptoms
Confusion or unusual behavior
Nausea or vomiting
Rapid heartbeat
Hot, dry skin
Loss of consciousness
If you notice these signs in yourself or a co-worker, stop work immediately and seek help.
Protect Yourself
✅ Drink water frequently – don't wait until you're thirsty.
✅ Take scheduled rest breaks in shaded or air-conditioned areas.
✅ Wear light, breathable clothing where possible.
✅ Follow the buddy system – look out for each other.
✅ Report any symptoms immediately to your supervisor.
✅ Acclimatize gradually when returning from leave or cooler climates.
Remember the "WATER" Rule
W – Watch for symptoms
A – Avoid overexertion during peak heat
T – Take regular water breaks
E – Encourage your buddy to stay hydrated
R – Rest in cool shaded areas
Here is MOM Heat Stress Framework for Outdoor Work.
