To restore a memory.

As everyday doing this simple exercise,which filling a brain for oxygen,that improves memory.
Sit, incline head down, with nose catching an air, slowly head up, after put back, to see a top, and delay breathe.After slowly low head for calculate 1,2,3,4,5,6,7,8 breathe out through mouth as rolled lips, as doing for 4 breathes out and four breathes in, course till 20 days, after to add small rest, and repeat again...