If your knuckles drag on the ground, then you’ve got a problem.
Or if you have one eyebrow over both eyes.
” This indicates that the two interbred with each other when they met outside Africa about 55,000 years ago. As a result, everyone today whose ancestors lived outside Africa at that time has inherited a small but significant amount of Neanderthal DNA, which makes up about 2% of their genomes.”
https://www.nhm.ac.uk/discover/are-neanderthals-same-species-as-us.html