One ER visit. One $3,800 bill you couldn't pay. And then — for the next seven years — every financial transaction in your life gets more expensive.

That's the credit cascade. And the math is brutal.

This is Episode 3 of the Medical Debt series, and it's the one that will make you angry. A 67-point credit score drop from medical debt doesn't just affect your ability to rent an apartment. It costs you $100,000 more in mortgage interest over 30 years. It adds $3,180 in auto loan interest on a $25,000 car. It raises your car insurance 15–25%. It locks you out of two-thirds of available rentals. It blocks job offers in nearly 30% of industries. And because higher credit card rates mean you can't pay down existing debt, it traps you in a cycle that keeps your score low for years after the original bill is paid.

Noah Volz does the full ...