That headache, dizziness, and "just tired" feeling you're brushing off? For a lot of people, that's the early stage of something that ends in a hospital bed on a drip. Here's how it actually happens.

Most people think of dehydration as "just drink water and you're fine." That's true for mild cases but dehydration exists on a scale, and the far end of that scale is a genuine medical emergency.

How it progresses:

Severe dehydration is a different situation entirely. At this stage, your body has lost enough fluid and electrolytes (sodium, potassium) that your organs such as heart, kidneys, brain start struggling to function properly.

 Warning signs include:

— Confusion, irritability, or trouble concentrating

— Rapid heartbeat or rapid breathing

— Extreme weakness or dizziness severe enough to make you faint

— Sunken eyes

— Little to no urine for 8+ hours, or urine that's very dark

— Skin that stays "tented" when gently pinched instead of bouncing back

— Persistent vomiting or diarrhea where you can't keep fluids down

If any of these show up especially confusion, fainting, or an inability to keep water down  that's not a "drink more water and see" situation. That's a "go to the hospital" situation, because at that point, oral fluids often aren't enough. You may need IV fluids to rehydrate safely and quickly.

Why this matters more in Nigeria specifically:

— Heat: Long hours in Lagos or Abuja sun, especially for outdoor workers, traders, or commuters stuck in traffic, can cause fluid loss faster than people realize.

— Food poisoning, typhoid, and malaria: All commonly cause vomiting and diarrhea, which are some of the fastest routes to severe dehydration — this is a big one, and it's often the actual reason someone with "malaria" ends up on a drip at the hospital: it's the dehydration from the fever/vomiting, not the malaria itself, that becomes dangerous.

— Fasting or long travel without enough water intake can quietly build dehydration over many hours before symptoms feel serious.

— Children and the elderly dehydrate faster and show it differently — a baby with no wet diapers for 6+ hours, or an elderly relative who suddenly seems confused, needs attention immediately, even if it doesn't look dramatic.

What actually helps, before it gets to that point:

— Oral rehydration solution (ORS) sachets, sold cheaply at most pharmacies — mix with clean water as directed.

— A homemade version: a pinch of salt and a spoon of sugar in a glass of clean water, if ORS isn't available.

— Zobo, coconut water, and pap in small amounts can help too, but they're not substitutes for ORS in a serious case.

The one thing to remember: if fluids by mouth aren't working if someone can't keep water down, is confused, or hasn't urinated in many hours don't wait it out at home. That's exactly the situation that turns into a hospital admission, and getting there sooner rather than later makes a real difference.