[
  {
    "id": 1,
    "difficulty": "easy",
    "question": "What does 'hypertension' mean?",
    "options": ["Low blood pressure", "High blood pressure", "Fast heartbeat", "Blood infection"],
    "correct": "High blood pressure"
  },
  {
    "id": 2,
    "difficulty": "easy",
    "question": "What is the main purpose of antibiotics?",
    "options": ["Treat viral infections", "Treat bacterial infections", "Reduce fever", "Help with sleep"],
    "correct": "Treat bacterial infections"
  },
  {
    "id": 3,
    "difficulty": "easy",
    "question": "What does a fever usually indicate?",
    "options": ["Body fighting infection", "Low blood pressure", "Dehydration only", "Heart failure"],
    "correct": "Body fighting infection"
  },
  {
    "id": 4,
    "difficulty": "easy",
    "question": "What is dehydration?",
    "options": ["Too much water in the body", "Lack of enough body fluids", "Low oxygen level", "High sugar level"],
    "correct": "Lack of enough body fluids"
  },
  {
    "id": 5,
    "difficulty": "easy",
    "question": "Which organ pumps blood through the body?",
    "options": ["Lungs", "Brain", "Heart", "Kidneys"],
    "correct": "Heart"
  },
  {
    "id": 6,
    "difficulty": "easy",
    "question": "What does 'chronic' mean in medical terms?",
    "options": ["Short-term", "Long-lasting", "Sudden", "Curable"],
    "correct": "Long-lasting"
  },
  {
    "id": 7,
    "difficulty": "easy",
    "question": "Which is a common symptom of the flu?",
    "options": ["Broken bone", "Fever and body aches", "Vision loss", "Chest injury"],
    "correct": "Fever and body aches"
  },
  {
    "id": 8,
    "difficulty": "easy",
    "question": "What does a vaccine do?",
    "options": ["Cures diseases instantly", "Prevents some infections", "Treats pain", "Improves sleep"],
    "correct": "Prevents some infections"
  },
  {
    "id": 9,
    "difficulty": "easy",
    "question": "What is a symptom?",
    "options": ["A disease cause", "A sign felt by the patient", "A medical test", "A treatment"],
    "correct": "A sign felt by the patient"
  },
  {
    "id": 10,
    "difficulty": "easy",
    "question": "Which one is a healthy habit?",
    "options": ["Smoking", "Regular exercise", "Skipping meals", "Sleeping 3 hours"],
    "correct": "Regular exercise"
  },

  {
    "id": 11,
    "difficulty": "medium",
    "question": "Why should antibiotics not be used for colds?",
    "options": ["They are too strong", "Colds are caused by viruses", "They increase fever", "They cause allergies"],
    "correct": "Colds are caused by viruses"
  },
  {
    "id": 12,
    "difficulty": "medium",
    "question": "What does 'side effect' mean?",
    "options": ["Main benefit of a drug", "Unwanted effect of a drug", "A disease symptom", "A cure"],
    "correct": "Unwanted effect of a drug"
  },
  {
    "id": 13,
    "difficulty": "medium",
    "question": "What does high blood sugar most commonly indicate?",
    "options": ["Diabetes", "Dehydration", "Infection", "Heart attack"],
    "correct": "Diabetes"
  },
  {
    "id": 14,
    "difficulty": "medium",
    "question": "Why is completing a full antibiotic course important?",
    "options": ["To save money", "To prevent resistance", "To reduce pain", "To improve sleep"],
    "correct": "To prevent resistance"
  },
  {
    "id": 15,
    "difficulty": "medium",
    "question": "What is a common sign of asthma?",
    "options": ["Wheezing", "Skin rash", "Joint pain", "Vision loss"],
    "correct": "Wheezing"
  },
  {
    "id": 16,
    "difficulty": "medium",
    "question": "What does BMI help measure?",
    "options": ["Blood pressure", "Body fat based on height and weight", "Heart rhythm", "Blood sugar"],
    "correct": "Body fat based on height and weight"
  },
  {
    "id": 17,
    "difficulty": "medium",
    "question": "Which symptom may indicate dehydration?",
    "options": ["Frequent urination", "Dry mouth", "Cold skin", "Fast heartbeat only"],
    "correct": "Dry mouth"
  },
  {
    "id": 18,
    "difficulty": "medium",
    "question": "What is a risk of untreated high blood pressure?",
    "options": ["Stroke", "Hair loss", "Skin rash", "Poor vision only"],
    "correct": "Stroke"
  },
  {
    "id": 19,
    "difficulty": "medium",
    "question": "Why is sleep important for health?",
    "options": ["Improves digestion only", "Helps body repair and function", "Prevents all diseases", "Boosts height"],
    "correct": "Helps body repair and function"
  },
  {
    "id": 20,
    "difficulty": "medium",
    "question": "What does 'acute' mean in medicine?",
    "options": ["Long-term", "Sudden or short-term", "Permanent", "Mild"],
    "correct": "Sudden or short-term"
  },

  {
    "id": 21,
    "difficulty": "hard",
    "question": "Why can misuse of antibiotics be harmful at a population level?",
    "options": ["They increase allergy rates", "They cause viral mutations", "They contribute to antibiotic resistance", "They weaken immunity permanently"],
    "correct": "They contribute to antibiotic resistance"
  },
  {
    "id": 22,
    "difficulty": "hard",
    "question": "Which symptom combination may suggest a heart attack?",
    "options": ["Chest pain and shortness of breath", "Headache and rash", "Cough and fever", "Nausea only"],
    "correct": "Chest pain and shortness of breath"
  },
  {
    "id": 23,
    "difficulty": "hard",
    "question": "Why should blood pressure be checked regularly?",
    "options": ["Symptoms always appear early", "High BP often has no symptoms", "It changes daily", "It only affects elderly"],
    "correct": "High BP often has no symptoms"
  },
  {
    "id": 24,
    "difficulty": "hard",
    "question": "What does 'contraindication' mean?",
    "options": ["A reason to use a drug", "A reason not to use a drug", "A drug interaction", "A side effect"],
    "correct": "A reason not to use a drug"
  },
  {
    "id": 25,
    "difficulty": "hard",
    "question": "Why is insulin needed in some people with diabetes?",
    "options": ["To reduce pain", "To help cells use glucose", "To lower blood pressure", "To cure diabetes"],
    "correct": "To help cells use glucose"
  },
  {
    "id": 26,
    "difficulty": "hard",
    "question": "What does 'asymptomatic' mean?",
    "options": ["No symptoms present", "Very painful", "Rapidly worsening", "Temporary illness"],
    "correct": "No symptoms present"
  },
  {
    "id": 27,
    "difficulty": "hard",
    "question": "Why should painkillers like ibuprofen be used carefully?",
    "options": ["They cause addiction immediately", "They may harm the stomach or kidneys", "They lower immunity", "They stop working quickly"],
    "correct": "They may harm the stomach or kidneys"
  },
  {
    "id": 28,
    "difficulty": "hard",
    "question": "Which condition increases stroke risk the most?",
    "options": ["Hypertension", "Common cold", "Mild allergy", "Dehydration"],
    "correct": "Hypertension"
  },
  {
    "id": 29,
    "difficulty": "hard",
    "question": "What is the purpose of screening tests?",
    "options": ["To treat disease", "To detect disease early", "To confirm symptoms", "To provide medication"],
    "correct": "To detect disease early"
  },
  {
    "id": 30,
    "difficulty": "hard",
    "question": "Why should patients not stop medication suddenly without advice?",
    "options": ["Symptoms may worsen", "Medicine becomes useless", "Body becomes addicted", "Side effects increase immediately"],
    "correct": "Symptoms may worsen"
  }
]