Why some people can't tell left from right

https://www.bbc.com/future/article/20230112-why-some-people-cant-tell-left-from-right

Preventable medical mistakes frequently involve wrong-sided surgery: an injection to the wrong eye, for example, or a biopsy from the wrong breast. These "never events" – serious and largely preventable patient safety accidents – highlight that, while most of us learn as children how to tell left from right, not everyone gets it right.

Very interesting and scary as well!

Many surgeons will go see the patient the day before the surgery on an extremity and take the floor nurse as a witness. He then asks the patient to point out the surgical site. He marks the site with a permanent marker and verifies the following day of the surgery.