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Why Are You Tired After the Beach?
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Why Are You Tired After the Beach?
Many people feel completely exhausted after a relaxing day at the beach.
Javier Ceballos, a sports medicine specialist, says
our bodies are actually working hard while we rest on the towel.
First, the body works constantly to maintain a stable temperature.
This cooling process forces the heart to pump harder,
and sweating leads to mild dehydration.
Young children and older adults are especially vulnerable to this strain.
Meanwhile, ultraviolet rays from the sun damage our skin cells.
The immune system responds by releasing chemical signals.
These signals make us feel drowsy so the body can quietly repair the tissue.
Moving around by the water also takes a hidden toll.
An Italian study shows that walking on soft sand takes twice as much energy.
To prevent severe fatigue, Ceballos suggests taking regular breaks in the shade.
He also recommends drinking water every hour,
and avoiding the peak sun between 12 p.m. and 4 p.m.
Quiz 🧠
Q1. Walking on soft sand takes more energy than walking on hard ground.
Show answer
✅ True
Soft sand shifts under your feet, which forces your muscles to work much harder.
Q2. What does "drowsy" mean in "I feel drowsy after lunch"?
Show answer
✅ sleepy
When you are drowsy, you feel very tired and ready to fall asleep.
Q3. Why does sun damage on your skin make you feel sleepy?
Show answer
✅ To help the body heal
The body signals you to rest so it can focus energy on repairing damaged cells.
Dialogue 🎧
Alex: I spent four hours just lying on a beach towel yesterday, and I woke up destroyed.
Olivia: You were not actually resting, though. Your body was working overtime under the sun.
Alex: Working overtime? I literally just lay there eating snacks and napping!
Olivia: A sports doctor, Javier Ceballos, says cooling down takes huge effort. Your heart has to pump much harder.
Alex: Wait, just to keep our body temperature stable? That makes no sense.
Olivia: It does! Sweating cools you, but mild dehydration quickly forces your heart to work extra hard.
Alex: Oof. That explains why my little cousins and grandparents get exhausted so fast.
Olivia: Exactly. Young children and older adults are especially vulnerable to that heat strain.
Alex: Okay, but what about that weird drowsiness? I can barely keep my eyes open.
Olivia: Ultraviolet rays damage your skin cells. Then your immune system releases chemical signals so you sleep while it repairs.
Alex: Whoa. So being drowsy is just my body sneaking in repair work?
Olivia: Pretty much! Plus, an Italian study found walking on soft sand takes twice as much energy.
Alex: I knew it! Every single step feels like lifting weights because your feet sink.
Olivia: To avoid severe fatigue, Ceballos suggests taking shade breaks and drinking water every hour.
Alex: And we should definitely dodge the peak sun between 12 and 4 p.m.
Olivia: Definitely. Otherwise, you spend the whole next day stuck on your sofa recovering.