New Jersey summers don’t just get hot — they get humid. And that combination is what makes late July and August genuinely dangerous, not just uncomfortable. When the air is thick with moisture, sweat doesn’t evaporate efficiently, which means your body’s primary cooling system stops working the way it should.

Most people know the phrases “heat exhaustion” and “heat stroke,” and most people use them interchangeably. They shouldn’t. One is a serious warning sign that responds well to rest and fluids. The other is a medical emergency that can cause permanent organ damage or death within minutes.

Knowing which one you’re looking at — in yourself, your child, or a coworker on a job site — is one of the more useful pieces of health knowledge you can carry into August.

How Heat Illness Develops

Your body maintains a core temperature near 98.6°F. When you’re active or the environment is hot, you shed excess heat mainly through sweating and by moving blood toward the skin’s surface.

That system has limits. Push past them — through heat, humidity, exertion, dehydration, or some combination — and heat illness develops along a spectrum:

• Heat cramps: Painful muscle spasms, usually in the legs or abdomen, caused by fluid and electrolyte loss
• Heat exhaustion: The body is struggling to cool itself, but the core temperature regulation system is still functioning
• Heat stroke: The cooling system has failed. Core temperature climbs above 104°F and organ damage begins

The progression isn’t always slow or obvious. Someone can move from mild symptoms to a genuine emergency in under an hour, particularly in high humidity.

Heat Exhaustion: What to Look For

Heat exhaustion is the body’s loud warning that it’s losing the battle. The person is still sweating heavily, still mentally clear, and still able to tell you what’s wrong.

Common signs include:

• Heavy sweating and cool, clammy, pale skin
• Weakness, fatigue, or a heavy-limbed feeling
• Dizziness or lightheadedness, especially when standing
• Headache
• Nausea or vomiting
• Muscle cramps
• A fast, weak pulse
• Body temperature that is elevated but below 104°F

What to Do

1. Move the person to a cool, shaded, or air-conditioned space immediately
2. Have them lie down and elevate their legs slightly
3. Loosen or remove excess clothing
4. Give cool water or an electrolyte drink in small, steady sips — not large gulps
5. Apply cool, wet cloths to the skin, or use a cool shower if available
6. Keep them still and monitored for at least 30 minutes

The Centers for Disease Control and Prevention advises seeking medical care if symptoms worsen, last longer than an hour, or if the person is vomiting and unable to keep fluids down.

Heat Stroke: A Medical Emergency

Heat stroke is not “worse heat exhaustion.” It’s a different clinical event. The body’s temperature control has failed outright, and the brain, kidneys, liver, and heart are at immediate risk.

The single most important distinguishing feature is a change in mental status. Warning signs include:

• Confusion, slurred speech, agitation, or unusual behavior
• Loss of consciousness or seizures
• Body temperature at or above 104°F
• Hot skin that may be dry — or, in exertional cases, still sweaty
• Rapid, strong pulse and rapid, shallow breathing
• Throbbing headache and nausea

If you suspect heat stroke, call 911 immediately. While waiting for emergency services, move the person into shade or air conditioning, remove outer clothing, and cool them aggressively with cold water, ice packs at the neck, armpits, and groin, or a cool bath if it can be done safely. Do not attempt to give fluids by mouth to someone who is confused or unconscious.

Heat stroke is a 911 call, not an urgent care visit. Time to cooling is the strongest predictor of survival and recovery.

Who Is Most at Risk

Heat illness doesn’t affect everyone equally. The following groups face substantially higher risk:

• Older adults: Age reduces the ability to sense thirst and regulate temperature, and many common medications compound the effect
• Infants and young children: They heat up faster than adults and depend entirely on caregivers to recognize trouble
• Outdoor workers: Construction, landscaping, roofing, warehouse, and delivery workers spend hours in the heat with limited control over their schedule
• Athletes and teens in preseason training: August football, soccer, and cross-country practices are a well-documented risk window
• People with chronic conditions: Heart disease, diabetes, obesity, and kidney disease all reduce heat tolerance
• Anyone on certain medications: Diuretics, beta blockers, antihistamines, antidepressants, and some psychiatric medications interfere with sweating or fluid balance

Preventing Heat Illness This Summer

• Drink water consistently through the day rather than waiting until you feel thirsty — thirst lags behind actual fluid loss
• Add an electrolyte drink during prolonged sweating, but skip high-sugar sodas and energy drinks
• Schedule strenuous outdoor work or exercise for early morning or evening
• Wear lightweight, loose, light-colored clothing and a wide-brimmed hat
• Take scheduled breaks in shade or air conditioning — not just when you feel bad
• Allow 10 to 14 days to acclimatize when starting a new outdoor job or preseason training
• Never leave anyone, including pets, in a parked car
• Check on elderly neighbors and relatives during heat advisories

When to Come to Care Station Medical

Urgent care is the right level of care for heat-related illness that hasn’t crossed into emergency territory. Come see us if you or a family member experience:

• Heat exhaustion symptoms that don’t improve within an hour of rest and fluids
• Persistent vomiting or an inability to keep fluids down
• Ongoing dizziness, weakness, or headache after cooling down
• Signs of significant dehydration — dark urine, very little urination, dry mouth
• Severe or recurring muscle cramps
• Heat rash or sunburn that is blistering, spreading, or painful

Our providers can assess your hydration status, run bloodwork to check electrolytes and kidney function when needed, provide IV fluids, and rule out other conditions that mimic heat illness.

Go to an emergency room or call 911 instead if there is confusion, fainting, seizure, or a body temperature at or above 104°F.

Get Same-Day Heat Illness Care in New Jersey

Don’t push through a hot day hoping the dizziness passes. Heat illness gets worse quickly, and early treatment is straightforward. Care Station Medical treats heat exhaustion, dehydration, heat cramps, and sun-related skin injuries at our urgent care locations throughout New Jersey, with no appointment necessary.

Walk into any of our locations or call (908) 925-CARE (2273) to speak with our team. We’ll get you cooled down, rehydrated, and back to your summer safely.

 

Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, call your doctor or 911 immediately.