This is true. The bones in your abdomen can help your backside (spine) straightforward. Many people don't do this and instead think lying on the floor will help. Yes, it will, be if your looking for better results, try push-ups and knee dips.
Thank You
Apokolips
If you're working on muscular fitness I'd focus more on the amount of weight you're lifting, along with then number of reps, and the type of excersises you're doing
A. Bathroom because it has the most moisture out of all of those places.
