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TELL ME WHY. UNIT 4
WHY DO WE DEVELOP ALLERGIES?
| Term | Definition |
|---|---|
| allergy | A condition where the body reacts to something normally harmless. |
| overreact | To react more strongly than necessary. |
| harmless | Not dangerous or likely to do harm. |
| allergen | A substance that causes an allergic reaction. |
| pollen | Fine powder produced by flowers and plants. |
| dust mites | Tiny creatures that live in household dust. |
| insect sting | The injury caused when an insect injects venom. |
| harmful | Causing damage or illness. |
| threat | Something that may cause harm or danger. |
| symptom | A physical sign of illness. |
| sneeze | To suddenly force air out through the nose. |
| itchy | Causing the desire to scratch. |
| breathing difficulties | Problems breathing normally. |
| treatment | Medical care to improve a condition. |
| sensitivity | The tendency to react strongly to something. |