Anatomy PhysiologySleep, Food, and Washing Keep Your Body Well
Medi stands in a bright, cozy kitchen in the morning, holding a glass of water and smiling, with a breakfast table showing fruit and toast nearby, a sink with soap visible on the counter, and golden sunlight coming through the window.
- Identify four daily habits that help keep the body healthy.
- Explain why the body needs food, water, sleep, and clean hands.
- Sort pictures of daily activities into healthy and not-healthy groups.
- Predict what might happen to the body without enough water or sleep.
Key terms
- healthy habit
- A good thing you do often to keep your body well.
- nutrient
- A good part of food that gives your body energy and helps it grow.
- germ
- A tiny living thing that can get inside you and cause sickness.
- repair
- To fix body parts that got tired or worn out, mostly during sleep.
Food and Water Fuel You
Food is like fuel for your body, the same way gas is fuel for a car. Fruits, vegetables, and grains give you nutrients for energy and growth. Water is just as important, because your blood, muscles, and brain all need it to work. Feeling thirsty is a signal from your body that it is time to drink.
Sleep Helps You Grow
Sleep is not only about resting. While you sleep, your body repairs parts that got worn out during the day, builds muscle, and helps your brain remember what you learned. This is why kids need about nine to twelve hours of sleep each night. Skipping sleep leaves your body without time to fix and rebuild itself.
Washing Stops Germs
Germs are tiny living things that you cannot see, and some of them can make you sick if they get inside your body through your mouth, nose, or eyes. Washing your hands with soap and water breaks germs apart and rinses them away before they can spread. Washing before eating and after using the bathroom protects you and others.
Worked examples
Explain why soap helps when you wash your hands.
- Germs cling to the oils and dirt on your hands.
- Soap breaks apart those germs and loosens the dirt.
- Then water rinses the broken-apart germs off before they make you sick.
Answer: Soap breaks germs apart so water can rinse them away.
Decide which routine keeps a body healthiest.
- Eating only candy and staying up late gives no real fuel and no rest.
- A healthy body needs food, water, enough sleep, and clean hands together.
- So the routine with all four habits is the healthiest choice.
Answer: Eating well, drinking water, sleeping enough, and washing hands together.
Activity
Sort each picture card into the correct healthy habit group.
Practice
Name the four healthy habits that help keep your body well.
Why does your body need sleep besides just feeling less tired?
Common mistakes to avoid
- Sleep is only for resting.During sleep the body repairs itself, grows, builds strength, and helps the brain remember things.
- Soap cleans because it smells nice.Soap works by breaking germs apart so water can rinse them away, not because of its scent.
Check your understanding
Why is it important to wash your hands with soap?
Your friend says they do not need to sleep because sleeping is just for resting. What would you tell them?
Which group of daily habits helps keep your body healthy?
Recap
Healthy habits keep your body working well. Food and water give you energy, sleep lets your body grow and repair itself, and washing your hands with soap removes germs before they can make you sick.
Reflect
Which healthy habit is hardest for you to keep, and what could help you do it?