A man looks at brain sculptures at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)

Brain sculptures are seen at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)

People look at brain sculptures at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)

A brain sculpture is seen at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)

People look at brain sculptures at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)

A man looks at brain sculptures at the Brain Project art exhibition in Nathan Phillips Square Pond in Toronto, Canada, on July 21, 2021. With 50 brain sculptures by local and international artists, the Brain Project art exhibition is displayed at some of Toronto's most-visited locations to raise awareness about brain health and funding for research for Alzheimer's and related dementia. (Photo: Xinhua)