I did not click the link, but:
side sleeping can over the years increase hip ITband issues, shoulder, neck and chest issues due to rounding/curling arm positions, many people tuck chin toward chest again over years can contribute to problems. ALSO leg positions while side sleeping can mess with lower spine over years.
Stomach sleeping also means head turned to one side which again messes with posture and can lead to problems. Also lead lower back pain due to sway back of spine unsupported. Leg positions, same as above.
Back sleeping is the most neutral for the body if you dont have your neck too high on pillows, but as original post mentions not best for some internal conditions.
Unless there is a pillow under my knees, sleeping on my back guarantees that I am completely useless due to back pain the next day.
Those who are drinking coffee in the middle of the night and wondering why they don’t sleep worth beans deserve a smack upside the head, mind you.
Nothing but W A T E R after brushing your teeth for bed.
I could never sleep on my stomach. Someone else's stomach was blissful.