Comment by Nevermark
3 days ago
I have a standing tanning machine.
I think your calculations are good, that I am operating with a significant time safety margin.
I balanced going (1) “short” on time, (2) “long” on body coverage, and (3) with consistent exposure schedule, for best steady-state body adaptation (I.e. for both high repair and positive health responses). For plausibly higher safety plus higher benefit on all three counts.
> I have a standing tanning machine.
Lucky you! So convenient. Yeah, then there's probably a good chance that's developing the vitamin D you need, although bulbs do take around 60 seconds to warm up to full brightness, but I'm just basing that off visual brightness and assuming that UV warm-up time is the same. I'm sure getting your vitamin D levels tested will definitely tell you if you're getting enough or not. If not, well you can always do 2 min, but blood tests give you the definitive answer there.