The three main types of stress are acute stress, episodic acute stress, and chronic stress. Acute stress is the short-term response to immediate challenges or threats, often triggering the body's fight-or-flight response. Episodic acute stress is characterized by frequent episodes of acute stress, leading to ongoing tension and anxiety. Chronic stress, on the other hand, persists over an extended period and can have severe health implications. Understanding these types helps individuals manage stress more effectively, promoting better mental and physical health outcomes.