Sep 2, 2026·1 min read·Graded Spanish · word-by-word audio
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La hidratación es esencial para la salud, pero muchas personas terminan el día ligeramente deshidratadas sin saberlo. La sed no siempre es un indicador fiable, y no todos los líquidos hidratan igual. El agua es la opción más común, pero su capacidad para quedarse en el cuerpo depende de varios factores.
¿Por qué la leche hidrata más que el agua? Porque contiene electrolitos, como sodio y potasio, y proteínas que ralentizan el vaciado del estómago y favorecen la absorción de agua en el intestino. Por otro lado, el alcohol, presente en la cerveza, suprime la hormona antidiurética y aumenta la producción de orina, por lo que deshidrata más de lo que hidrata.
Para la hidratación diaria, el agua sigue siendo la mejor opción por su accesibilidad y bajo aporte calórico. Pero en situaciones de calor intenso o ejercicio prolongado, añadir una pizca de sal al agua o elegir leche puede ser más eficaz. La cerveza, en cambio, no es recomendable para calmar la sed.
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Watch out, English speaker
Spanish often uses 'se' + third-person verb to express general statements, like 'Se puede añadir sal.' English speakers might try to translate this with 'you can' or 'one can,' but Spanish avoids specifying a subject. Remember: 'se' here doesn't mean 'itself'—it's an impersonal marker.
'Aunque' can be followed by either indicative or subjunctive, but the meaning shifts. With indicative, it means 'although' (a real fact), as in 'Aunque la cafeína tiene un efecto diurético...' English 'although' always takes a real fact, so learners may mistakenly use subjunctive in Spanish for the same idea. Use indicative when stating a fact, subjunctive for a hypothetical or denied fact.
Key vocabulary
hidrataciónf.
hydration
“La hidratación es esencial para la salud.”— Hydration is essential for athletes.
Pattern la hidratación de la piel skin hydration
Compare rehidratación (rehydration)
Plural: hidrataciones
💡 The root 'hidro-' means water, as in hidratar (to hydrate).
deshidratadoadj.
dehydrated
“Muchas personas terminan el día ligeramente deshidratadas.”— After running, I felt dehydrated.
Pattern estar deshidratado dehydrated
Compare seco (dry)
Feminine: deshidratada; plural: deshidratados
💡 The prefix 'des-' indicates negation, as in deshidratar (to dehydrate).
índicem.
index, indicator
“El índice de hidratación mide la eficacia de las bebidas.”— The price index rose this year.
Pattern el índice de precios price index
Compare indicador (indicator)
Plural: índices
💡 Note the stress is on the 'i', do not write it as 'indice'.
orinaf.
urine
“El alcohol aumenta la producción de orina.”— The doctor analyzed his urine.
Pattern producción de orina urine output
Compare pis (colloquial, urine)
Plural: orinas
💡 The verb is orinar (to urinate).
electrolitom.
electrolyte
“La leche contiene electrolitos como sodio y potasio.”— Sports drinks contain electrolytes.
Pattern bebidas con electrolitos electrolyte drinks
Compare mineral (mineral)
Plural: electrolitos
💡 Common in sports drinks, such as 'isotónico'.
ralentizarv.
protein
“Las proteínas ralentizan el vaciado del estómago.”— Milk is rich in proteins.
Pattern ralentizar el proceso slow down the process
Compare retardar (delay)
Conjugation: ralentizo, ralentizas, ralentiza...
💡 From 'lento' (slow), the prefix 'ra-' intensifies.
absorciónf.
diuretic (adj./noun)
“La absorción de agua ocurre en el intestino.”— Coffee has a diuretic effect.
Pattern la absorción de agua water absorption
Compare asimilación (assimilation)
Plural: absorciones
💡 The verb is absorber (to absorb).
suprimirv.
to retain, to hold
“El alcohol suprime la hormona antidiurética.”— The body retains water when it's hot.
Pattern suprimir una hormona suppress a hormone
Compare eliminar (eliminate)
Conjugation: suprimo, suprimes, suprime...
💡 The prefix 'sub-' means down, extended to 'suppress'.
antidiuréticoadj.
emptying, clearance
“La hormona antidiurética regula la producción de orina.”— Stomach emptying is slower with proteins.
💡 The prefix 'anti-' means 'against', 'diurético' is related to urination.
accesibilidadf.
pinch, small amount
“El agua destaca por su accesibilidad.”— Add a pinch of salt to the water.
Pattern la accesibilidad de un producto the accessibility of a product
Compare disponibilidad (availability)
Plural: accesibilidades
💡 From 'accesible' (accessible), the suffix '-dad' indicates a quality.
aportem.
“El agua tiene un bajo aporte calórico.”
Pattern aporte calórico caloric intake
Compare contribución (contribution)
Plural: aportes
💡 The verb is aportar (to provide).
pizcaf.
“Añade una pizca de sal al agua.”
Pattern una pizca de sal a pinch of salt
Compare poco (a little)
Plural: pizcas
💡 Common in cooking, as in 'una pizca de' meaning 'a little bit'.
Grammar spotlight
Impersonal sentences (se + third-person verb)
A2
Use se + the third-person singular or plural verb to express a general 'one' or 'you' or 'people', without specifying who does the action. The verb agrees with the following noun.
“Se puede añadir una pizca de sal al agua.”— You can add a pinch of salt to the water.
⚠️ Don't forget to place se before the verb, and make sure the verb agrees with the following noun.
Aunque means 'although' or 'even though' and can be followed by the indicative (for facts) or the subjunctive (for hypotheses). In this text, aunque is followed by the indicative to state a fact.
“Aunque la cafeína tiene un efecto diurético, este no es suficiente.”— Although caffeine has a diuretic effect, it is not enough.
⚠️ When aunque introduces a known fact, use the indicative; if it introduces a hypothesis or something not yet happened, use the subjunctive.
Sentence patterns to steal
No todos los líquidos hidratan igual.
Not all liquids hydrate equally.
No todos + noun + verb + adverbThe noun can be replaced with 'alimentos' (foods), etc., and the verb with 'gustan' (are pleasing), etc.
La hidratación es muy importante para la salud.
Hydration is very important for health.
Ser + importante para + nounThe adjective can be replaced with 'esencial' (essential), etc., and the noun with 'el bienestar' (well-being), etc.
Esto se debe a que los electrolitos y las proteínas de la leche ralentizan el vaciado del estómago.
This is because the electrolytes and proteins in milk slow down stomach emptying.
Esto se debe a que + clauseThe clause can be replaced with other reasons, such as 'el agua es esencial' (water is essential).
La leche es una buena opción después del ejercicio o para personas mayores que necesitan recuperar líquidos rápidamente.
Milk is a good option after exercise or for older people who need to replenish fluids quickly.
Ser una buena opción para + noun/infinitiveThe noun can be replaced with 'los niños' (children), etc., and the verb with 'viajar' (travel), etc.
En días de calor, el agua sigue siendo la mejor opción para la hidratación diaria.
On hot days, water remains the best option for daily hydration.
Seguir + gerund + nounThe gerund can be replaced with 'siendo' (being), 'estando' (being), etc.
Hydration habits in Spain
In Spain, people traditionally drink water or wine with meals, but in recent years, as health awareness has grown, more people are choosing bottled water or low-sodium drinks. Spanish summers are hot, and outdoor workers often drink a barley water called 'agua de cebada' to stay hydrated.