Stroke Rates in Younger Americans Have Nearly Doubled Since the 90s-and Scientists Can't Fully Explain It

Key Points:

• Research from the University of Cincinnati reveals a significant rise in stroke rates among Americans under 55, nearly doubling from 34 to 62 cases per 100,000 person-years between 1993 and 2020, driven mainly by ischemic strokes.
• Despite overall declines in stroke incidence and mortality in older adults, younger populations are experiencing an increase in strokes, a trend that remains poorly understood and requires urgent further investigation.
• Traditional risk factors like high blood pressure and diabetes have increased among younger adults, but these alone do not fully explain the trend; lifestyle factors such as obesity, sedentary behavior, and rising recreational drug use, including cannabis, may also contribute.
• Strokes in younger individuals are particularly concerning due to the potential for long-term disability impacting work and family life, emphasizing the need for more detailed cohort studies to identify underlying causes.
• The Greater Cincinnati/Northern Kentucky Stroke Study continues to monitor this trend, and future research, including the REGARD study, aims to explore new risk factors such as marijuana use and vaping among younger generations.