If you drink coffee for a long time, it will easily lead to atherosclerosis, affect the blood supply to the heart, and there will be many heart diseases.

Suggestion: I suggest you don't eat too much coffee, which is not good for your health. You'd better drink more fruit. I hope my answer can help you.

And if you don't eat breakfast for a long time, it will be bad for your stomach and your food will not be digested.