He may also have been using penicillin, long before antibiotics were developed.
The evidence comes from ancient DNA found in the dental tartar of Neanderthals living about 40,000 years ago in central Europe.
Microbes and food stuck to the teeth of the ancient hominins gives scientists a window into the past.
By sequencing DNA preserved in dental tartar, international researchers have found out new details of the diet, lifestyle and health of our closest extinct relatives.
"Their behaviour and their diet looks a lot more sophisticated and a lot more like us in-read more