According to recent research, drinking tea and coffee might be linked to a reduced risk of stroke and dementia. Drinking coffee was also linked with a reduced risk of post-stroke dementia. The study was published in the 'PLOS Medicine Journal'. Strokes are life-threatening events that cause 10 per cent of deaths globally. Dementia is a general term for symptoms related to declining brain function and is a global health concern with a high economic and social burden. Post-stroke dementia is a condition where symptoms of dementia occur after a stroke.