Anyone have one of these?
How Lumen works
@haidut mentioned in an interview that this is one of the best bio-markers to know. It would be awesome if it measured oxygen consumption too, what's the device Ray always refers to when talking about his oxygen consumption increasing immensely?
How Lumen works
@haidut mentioned in an interview that this is one of the best bio-markers to know. It would be awesome if it measured oxygen consumption too, what's the device Ray always refers to when talking about his oxygen consumption increasing immensely?