Health studies link physical activity and ADHD to cognitive outcomes

Recent American studies have identified potential links between specific health conditions and cognitive decline.

Research published in the journal Neurology involving 294 participants suggests that increased physical activity may be associated with a slower decline in memory and motor skills for individuals with Parkinson's disease. Participants who were physically active for more than eight hours per week—including household tasks, hobbies, and walking—showed more favorable outcomes. While the study does not prove that movement directly slows the disease, it suggests a correlation that warrants further investigation.

Separately, a study from the University of Pittsburgh published in JAMA Psychiatry examined the relationship between ADHD and dementia in adults over 50. Analyzing data from the All of Us research program, researchers found that individuals with an ADHD diagnosis had a higher risk of developing dementia or mild cognitive impairment compared to those without. After adjusting for factors such as age and cardiovascular disease, the risk was 4.6 times higher. However, the researchers noted that this increased risk decreased significantly if there was a gap of at least eight years between the ADHD diagnosis and the onset of cognitive issues.