Can Dogs Smell Certain Diseases?

Researchers admit there is still a lot of research to be done before these findings are definitive. This study was just over the course of two nights and only included 20 sleepers. With training, they can detect cancers like prostate cancer with over 98 % accuracy. Some dogs have also been used to detect malaria, parkinson's and even cove 19. And now researchers are trying to make machines that share this incredible ability - and they're not far off.

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