More people around the world are falling ill and dying from dementia than they used to. Between 2000 and 2019, the rate of dementia increased by 86%, while deaths from the cognitive disorder more than doubled. Longer life spans and aging populations in much of the world are partly to blame. However, evidence suggests that lifestyle and environmental causes may also play a role, namely, air pollution, excessive alcohol consumption, and traumatic brain injury.
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Source: Phys.org