Explanation of "Wake-Up Call"

1. Literal Meaning:
   A service (e.g., in hotels) where someone is phoned at a specified time to ensure they wake up.
2. Metaphorical Meaning:
   An event or situation that alerts someone to a problem, danger, or need for change. It serves as a catalyst for action, often after complacency or ignorance.

Examples of Usage:

1. Health:
   "After her high cholesterol results, the doctor’s warning was a wake-up call for Priya to adopt a healthier lifestyle."

2. Environment:
   "The unprecedented heatwave became a wake-up call for the city to invest in climate-resilient infrastructure."

3. Education:
   "Failing his midterm exams was the wake-up call Jason needed to prioritize studying over video games."

4. Business:
   "Losing their biggest client served as a wake-up call for the firm to improve customer service and innovation."

5. Personal Growth:
   "Her friend’s honest feedback about her negativity became a wake-up call, prompting her to practice mindfulness."

6. Global Issues:
   "The pandemic was a global wake-up call, highlighting the importance of robust healthcare systems and international cooperation."

7. Safety:
   "A near-collision on the highway acted as a wake-up call for Lena to stop checking her phone while driving."