10 May 2018
Behavioural immune system
We may have what researchers call a "behavioural immune system". This kicks in when someone sneezes near you and you back off. If it's too good though it could turn you into a recluse.
We may have what researchers call a "behavioural immune system". This kicks in when someone sneezes near you and you back off. If it's too good though it could turn you into a recluse.