Key Highlights
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A study found that epigenetic age acceleration, measured by several different “biological clocks” in blood samples, did not predict a person’s future risk of developing Parkinson’s disease. This suggests these specific biomarkers may not be reliable for forecasting Parkinson’s onset, shifting the focus to other potential early warning signs.
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Poor sleep quality and daytime sleepiness in early middle age were linked to unfavorable levels of Alzheimer’s disease-related proteins in the blood 20 years later. This strengthens the idea that addressing sleep issues decades before symptoms appear could be a way to help reduce Alzheimer’s risk.
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A study in rats showed that eating a diet high in fat and sugar can change how the brain responds to morphine, making it harder for the animals to tell the difference between the drug’s effects and a neutral stimulus. This finding suggests that poor diet could be a risk factor for developing more severe, dysregulated patterns of drug use.
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