Explain why so many people are being sad or stressed with having a mental illness?

Explanation:

When stress becomes overwhelming and prolonged, the risks for mental health problems and medical problems increase. Long-term stress increases the risk of mental health problems such as anxiety and depression, substance use problems, sleep problems, pain and bodily complaints such as muscle tension.

answer; ok one source said 643,000 and another one said 1.8 million people go bankrupt every year due to medical bills,also 62.1 percent of all bankruptcies were because of medical luck!