reaganry Seems like a number of people have issues specific to the left side of their face/head, etc. comment here if you do too.
Zodios I have issues with right side. Every person have dominant eye usually it is same as dominant hand. Most people are right-hand so it may be possible that most people have on side issues.
async Probably not that simple. Red ear on the left side when dehydrate or migraine symptoms act up. Mild weakness or issues on the right side. In general most face/neck/upper back issues here are on the right side. Highly connected to neck issues and subluxations.