Neither AddLife's ability to grow its EBIT nor its interest cover gave us confidence in its ability to take on more debt. But its conversion of EBIT to free cash flow tells a very different story, and suggests some resilience. When we consider all the factors discussed, it seems to us that AddLife is taking some risks with its use of debt. While that debt can boost returns, we think the company has enough leverage now. The balance sheet is clearly the area to focus on when you are analysing debt. But ultimately, every company can contain risks that exist outside of the balance sheet. For example AddLife has 3 warning signs (and 1 which is concerning) we think you should know about.