Seven hours a day for more than one day is not a very good idea unless you are willing to physically exercise strenuously an equal 7 hours/day to keep your system in balance. You should get in as much physical exercise as you spend time Image-Streaming or any other form of deep-state or meditative activity.
If you image stream / meditate or do any form of entrainment --- have a life as well. Balance it with exercise.
I'd add family, hygiene and work to that balance as well.
So if you Image Stream for an hour a day, exercise to take care of your body physically, an hour a day seems reasonable. Spend time with your family and look after your basic needs. An hour absolute minimum, since most days most people have an 8 hour work day, and sleep.
Also an hour a day image streaming is likely to be matched by up to an hour of debriefing if you're doing it on your own.
Alex
