![](db/pages/2020/11/02/002/zimg_003_freesnippingtool-com-capture-20201102142704.png)
This is easy to understand. You heart of on your left side and therefore, it makes sense to sleep to your left side as it facilitates as smoother flow of blood towards the heart given the force of gravity. This will definitely take some load off your heart and give rest to your body.