What are effective lifestyle changes to combat anxiety?

I am sorry, but it seems there is no current data available directly from the Huberman Lab to provide specific lifestyle changes for combating anxiety.

However, Andrew Huberman has discussed various neuroscience and biology topics that often touch on stress and mental health, and it's likely that within those discussions, there are recommendations for lifestyle adjustments that may help alleviate anxiety. For access to this broader range of discussions, consider listening to some episodes of the Huberman Lab podcast or browsing its clips section for relevant content.