At a glance
  • Heat exhaustion often causes heavy sweating, weakness, dizziness, nausea or headache.
  • Heatstroke involves severe overheating with neurological symptoms such as confusion, collapse or seizures and is a medical emergency.
  • Older adults, outdoor workers, athletes and people taking certain medicines can be more vulnerable.

Why this deserves attention

Heat illness can progress from heavy sweating, weakness and dizziness to confusion, collapse or dangerously high body temperature. Know the emergency boundary.

The same symptom can have several causes. Useful clues include how quickly it changed, how severe it is, what comes with it, personal risk factors and whether it is clearly different from your normal baseline.

What to observe

Notice heat exposure duration, fluid intake, sweating, urine, mental state, body temperature if available and whether symptoms improve promptly after cooling.

Write down when symptoms happen, how long they last, triggers, changes in normal function and medicines or supplements already taken. A short record often makes a consultation more useful.

Sensible next steps

Move to a cool area, remove excess clothing and begin cooling. For mild heat exhaustion, fluids may help if the person is awake and not vomiting.

Medical assessment and where TCM fits

Heatstroke requires emergency medical treatment and active cooling; do not wait for home remedies to work.

TCM “heatiness” is a traditional concept and must not be confused with physiological heatstroke. Herbal drinks are not a substitute for emergency cooling and medical care.

TCM and conventional care can sometimes complement each other, but acute red flags, conditions needing imaging or blood tests, and diseases with established evidence-based treatment require diagnosis and safety to come first.

When not to wait

Confusion, collapse, seizures, severe agitation, loss of consciousness or very high body temperature after heat exposure requires 995/emergency care.

Related reading & Singapore resources

Important

This page provides general health education, not an individual diagnosis or emergency plan. Sudden, severe, worsening or red-flag symptoms should be assessed through appropriate conventional medical or emergency care.