After studies showed certain vaccines had a protective effect against Alzheimer's, researchers wanted to see if treating the virus might slow disease progression.

However in a group of people with early Alzheimer's disease this had no effect on cognitive decline. 

Also, a new study urges us to rethink the side effects of statins. And GLP-1s under the spotlight for nutritional deficiencies and muscle loss. 

References

• Valacyclovir Treatment of Early Symptomatic Alzheimer Disease: The VALAD Randomized Clinical Trial
• Assessment of adverse effects attributed to statin therapy in product labels: a meta-analysis of double-blind randomised controlled trials
• Nutritional deficiencies and muscle loss in adults with type 2 diabetes using GLP-1 receptor agonists: A retrospective observational study