I've decided to do Walking 60 days in AM and Foundation in Evening with my Wife.
We're both beginners and older (64) and a tad over weight.
She's supporting me really, I'm so lucky !
We learnt it in Jui Jujitsu (Japanese) many years ago.
It's a distractor point on the neck below the ear, when struck/poked or thumbed it allows you to manoeuvre into another space, while the opponent is stunned/distracted.
An elbow can be devastating, gives you time to run/exit.