I hope I can popularize some knowledge for everyone.
If you are not thin, but your ribs are obvious. The first is to see if it is a genetic disease. Ask my father if he was like this when he was a child.
Second, the point is that this is a symptom of chicken breasts.
I said how to correct this, eat more meat, not partial eclipse, and eat noodles with kelp and pork bones at home when you have time, which is caused by calcium deficiency.
Don't look at other answers, they are all invalid.
There is also the need to have enough exercise and do more push-ups every day, which will have a great effect in January. I hope I can help you. Of course, you can trust me privately if you have any questions. I won't be stingy with the correction information in this regard.
Besides, it can be corrected by surgery, which is not recommended.