Sawbones: Is Leg-Length Discrepancy Genetic?

It's another Sawbones: Medical Questions, and we're gonna go full Galaxy Brain on these listener-submitted queries. What is methalated B-12? Can my appendix grow back and give me appendicitis ad infinitum? Does sugar help tongue burns or is it just tasty? And most importantly, how do I tell my friend to stop listening to TikTok for medical advice?

Music: "Medicines" by The Taxpayers https://taxpayers.bandcamp.com/