It's not mainly about speed (although the ceiling is much higher), but about ergonomics, and, plainly, enjoyability. The other benefit of making your own environment is mastery and control; only you can decide when and how the environment changes.
> The discovery that chronic inflammation can provide the impetus for cancers to develop is forcing clinicians to rethink their approach to the disease’s prevention.
Alternative health has been saying this for decades. Ketogenic diets + medicinal plants/mushrooms can do a lot, even after the fact.