Although the specific date of death is obviously not intended to be accurate — the app’s disclaimer says it’s “for fun only” — it does tie your personal habits to your likelihood of living into old age and tells you what lifestyle changes might buy you more time. Thus Death Clock AI’s motto: “Know your date. Change your fate.”

After responding to 29 questions — including how much of the day I spend sitting, whether I get at least seven hours of sleep a night and whether I get all my recommended cancer screenings — I had my answer. A darkly humorous “Save the Date” card suggested I plan my end-of-life celebration for April 17, 2042, but I also learned the most likely ways I would die: sleep disorders, cardiovascular disease or cancer, in that order. Of course, cancer and heart disease are the two big killers in the United States. But I was surprised by how harmful sleep issues are.