Why caffeine makes some people buzz

Scientists say it all depend on caffeine habits, lifestyle and one factor we have no control over: our genes. Officials and experts continue to monitor developments closely as the situation unfolds. Communities affected by the story are watching for further updates in the days ahead.

Analysts say the implications could extend well beyond the immediate headlines, with policymakers and industry leaders expected to respond in the coming weeks. Readers following this story should check back for the latest details as new information becomes available.