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Rebecca is doing some long breatholding in a bathtub filled with max water and use the deepest end in tub where your head is.Try to stay underwater You are going under and have open eyes and look up at camera release a little bubbles somtimes when under and dont hold your nose use a nose clip if you have one and make some pretty hair like picture and when you can hold it anymore you release the last air in your lungs and go up and take 2 deep breath and go down again and try to stay under 1 minutes or longer if possible. Then face down same scenario you are flat on your stomach in tub and you release a little bubbles somtimes.