Heat Illness & Hydration

South Carolina’s archery and early seasons open in heat — 80°F and humid, dragging a deer through thick cover. Heat illness is one of the most common — and most preventable — ways a hunt turns dangerous. The skill that matters: spotting the moment “tired and sweaty” tips into a true emergency, and knowing the one difference that changes everything you do next.

The one difference that matters: mental status

Heat exhaustion and heat stroke sit on the same ladder, but they call for very different responses — and the fastest way to tell them apart in the field is mental status. Per the CDC (CDC — Heat-Related Illnesses):

Heat exhaustion — the body is overwhelmed but still coping. The person is alert. Signs:

• Heavy sweating; cool, pale, clammy skin
• Headache, dizziness, nausea, weakness, irritability, thirst
• Fast, weak pulse; muscle cramps; maybe fainting

Heat stroke — the body’s cooling system has failed. This is the emergency. Signs:

• Confusion, slurred speech, altered mental status — the key red flag
• Loss of consciousness, possible seizures
• Hot skin — may be dry, or still sweating
• Very high body temperature (can rise to 106°F or higher within 10–15 minutes)

Respond: the correct action for each

Lead with these as flat rules — don’t reason them out while someone’s in trouble.

Heat exhaustion (CDC):

• Move the person to a cool, shaded place and have them rest.
• Loosen or remove extra clothing.
• Cool them with cool, wet cloths or a cool bath; circulate air.
• Have them sip cool water.
• Get medical help if they’re vomiting, symptoms worsen, or symptoms last longer than 1 hour.

Heat stroke (CDC):

• Call 911 immediately. Stay with them until EMS arrives.
• Move them to a cooler place; remove outer clothing.
• Cool rapidly — cold water or an ice bath if possible; wet the skin; put cold, wet cloths or ice on the neck, armpits, and groin; circulate air.
• Do NOT give a confused or unconscious person anything to drink — they can choke.

The why Why you don't give a heat-stroke victim water

A person with heat stroke has an altered mental status — confused, slurring, or unconscious. Someone who isn’t fully alert can’t protect their airway, so fluids can go into the lungs (aspiration) instead of the stomach. That’s why the CDC says don’t give a heat-stroke victim anything to drink. Your job is to cool them fast and keep 911 coming — not to hydrate them. Sipping water is for the alert heat-exhaustion case, not the emergency.

Prevent it: hydrate before you’re thirsty

Most heat illness never has to happen. The CDC/NIOSH guidance for working in heat is simple (CDC/NIOSH — Hydration & Cooling):

• Drink before you’re thirsty. By the time you feel thirst, you’re already behind. For moderate activity in the heat, NIOSH suggests about one cup of water every 15–20 minutes.
• Don’t overdo it either — chugging gallons isn’t the goal; steady sips are.
• Rest in the shade and pace yourself, especially during the hard work of dragging or packing out an animal.
• Acclimatize. Your body adapts to heat over days — don’t go from the couch to an all-day hot-weather hunt and expect to be fine.
• Skip or limit alcohol and a lot of caffeine before and during, and watch out on the hottest part of the day.
• Electrolytes matter on long, sweaty days — water alone isn’t always enough when you’re losing a lot of salt.

Make the call

It’s an 84°F SC opener. You and a buddy just dragged a doe a quarter mile uphill.

Decision

Your buddy stops, drops to a knee, soaked in sweat. He's dizzy and nauseated but answering you clearly and knows where he is. What is this, and what do you do?

Heat exhaustion — get him to shade, loosen clothes, cool cloths, sip water He's just tired — tell him to push through and keep moving

Check the calls

Safety check

What single sign most clearly tells you it's HEAT STROKE (the emergency), not heat exhaustion?

What single sign most clearly tells you it's HEAT STROKE (the emergency), not heat exhaustion?

Confusion / altered mental status (slurring, not making sense, passing out) Heavy sweating Feeling thirsty

Check answer

Safety check

Your hunting partner is confused and overheated — you're treating it as heat stroke. After calling 911, what do you do?

Your hunting partner is confused and overheated — you're treating it as heat stroke. After calling 911, what do you do?

Cool him fast — shade, cold water/ice to neck, armpits, and groin — and do NOT give him anything to drink Force him to drink water to rehydrate fast Keep him bundled up and warm so he doesn't go into shock

Check answer

Take it to the woods

Beat heat illness before it starts. Build a hydration-and-pacing plan for hot openers and run it every warm hunt. This checklist persists.

Hot-opener hydration & heat plan

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Reset

• Start the day already hydrated — drink before the hunt, not just during. By the time you're thirsty, you're behind.
• ⚠ Safety Carry enough water to drink ~1 cup every 15–20 minutes of work in the heat.
• Pack electrolytes for long, sweaty days.
• Plan shade and rest breaks — especially before/after dragging or packing out.
• Limit alcohol and heavy caffeine before and during a hot hunt.
• ⚠ Safety Know the heat-stroke red flag — confusion / altered mental status = call 911 + cool fast. Watch your partner, not just yourself.
• Tell someone your plan and check in — heat illness can sneak up when you're alone.

Sources

• CDC / NIOSH — Heat-Related Illnesses (heat exhaustion vs. heat stroke signs and first aid): https://www.cdc.gov/niosh/heat-stress/about/illnesses.html
• CDC — About Heat and Your Health: https://www.cdc.gov/heat-health/about/index.html
• CDC — Heat-Related Illnesses: What to Look For (PDF): https://www.cdc.gov/extreme-heat/media/pdf/Heat_Related_Illness.pdf
• CDC / NIOSH — Keeping Workers Hydrated and Cool Despite the Heat (drink ~1 cup every 15–20 min; don’t wait for thirst): https://blogs.cdc.gov/niosh-science-blog/2011/08/12/heat-2/
• CDC — Heat and Outdoor Workers: https://www.cdc.gov/heat-health/risk-factors/heat-and-outdoor-workers.html