Macbeth explain why shakespeare, especially in the last half of the play, incorporates so many references to health, sickness, and disease into the play

Shakespeare's tragic play: Macbeth includes: sickness, health and disease within his play to retell a story of Macbeth's dark side - covetous greed, lustfulness, and wickedness at his wife, friends, and enemies.

Macbeth's unlawfulness throughout the story; he murdered Duncan (for the sake of pleasing his wife due to promising his dark side) and that promising let out his inner wickedness and made him greedy for more.

At the last of the Act 5

Macbeth's wife slept walked due to being guilty of planning the murderous crime of eliminating Duncan with Macbeth. Therefore, she was guilty of her murderous crimes. Her, Lady Macbeth, shown as a powerless woman represented sickness. In result, Macbeth calls the doctor - yet the doctor could not find a cure, that embodies a sign of disease - Lady Macbeth is not well and later in the scene faints.

As for health, Macbeth became a powerhouse for his wife, and has become very powerful - that in order to kill his enemy - Macduff, he flew all the way to England to revisit Macduff in a duel battle with a level of health.

Thus, Macbeth dies, eliminated by his enemy, Macduff.

To conclude, Act 5, Scene 8 does vary health, sickness and even disease and that has became the ups and downs for Macbeth (health) and Lady Macbeth (sickness and disease)