Staying Healthy

Define and explain Staying Healthy in your own words
Use key terms such as balanced diet accurately
Apply what you have learned to new examples and questions
Avoid the common mistakes learners make with this topic

This lesson focuses on Staying Healthy: see why exercise, sleep, clean hands and clean teeth matter every single day.

Definition: Staying Healthy

See why exercise, sleep, clean hands and clean teeth matter every single day.

Key ideas

A balanced diet gives the body energy and the nutrients it needs to grow and repair. Regular exercise strengthens muscles, bones and the heart. Good hygiene, such as washing hands before eating and brushing teeth twice a day, stops germs spreading and protects teeth. Enough sleep lets the body and brain recover.

The five senses

Humans detect the world with five senses: sight (eyes), hearing (ears), smell (nose), taste (tongue) and touch (skin). Each sense has a specialised organ. Smell and taste work together, which is why food tastes bland when your nose is blocked with a cold.

Key term — balanced diet: Eating the right amounts of different food groups, including fruit and vegetables, carbohydrates, protein and dairy, to stay healthy.

Worked example: Staying Healthy

Give two reasons why exercise keeps you healthy.

Any two of: strengthens muscles and bones; keeps the heart healthy; helps maintain a healthy weight; improves mood and sleep.

Answer: Any two of: strengthens muscles and bones; keeps the heart healthy; helps maintain a healthy weight; improves mood and sleep.

Common mistakes

Thinking bones are dead and dry Bones are living tissue with a blood supply. They grow, repair themselves when broken, and need calcium and exercise to stay strong.
Saying the skull protects the heart The skull protects the brain. The ribs protect the heart and lungs.

Practice

Why should you wash your hands before eating?

What might be on your hands?

To remove germs picked up from surfaces, which could otherwise be transferred to food and cause illness.

Name the five senses and the organ used for each.

Sight uses the eyes.

Sight – eyes; hearing – ears; smell – nose; taste – tongue; touch – skin.

Give two jobs of the skeleton.

Think about protection and shape.

Any two of: supports the body and gives it shape; protects delicate organs such as the brain, heart and lungs; works with muscles to allow movement.

Why does food taste bland when you have a cold?

Which two senses work together?

Because smell and taste work together to create flavour, and a blocked nose stops you smelling the food properly.

Quick check

Staying Healthy — quick check

Which of these best defines "balanced diet"?

Eating the right amounts of different food groups, including fruit and vegetables, carbohydrates, protein and dairy, to stay healthy.

Name the four main food groups in a balanced diet.

Fruit and vegetables, carbohydrates, protein, and dairy (with small amounts of fats and oils).

Key takeaways

Staying Healthy: see why exercise, sleep, clean hands and clean teeth matter every single day.
Staying healthy: A balanced diet gives the body energy and the nutrients it needs to grow and repair.
skeleton: The framework of bones that supports the body, protects organs and works with muscles to allow movement.
Watch out for: thinking bones are dead and dry

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