It certainly anecdotal, but feels like you can positively effect your gut microbiome for example by riding a bicycle. If its not the bike's biome then what is it that so satisfingly calming post ride. Would love to be enlightened. Ride a bike if you need to destress, amazing machines.
https://www.frontiersin.org/journals/cellular-and-infection-... https://www.cell.com/iscience/fulltext/S2589-0042(25)02209-6 https://www.sciencedirect.com/science/article/pii/S235277142...
im talking about impacting your microbiome through another animal, not the short term effects from aerobic exercise or BDNF and what that feels like. this experience didnt hit quite like other typical metabolic functions.
great to hear you like BDNF. we all could use more of that.