Yogis had discovered the nasal cycle around thousands of years ago which is discovered by Medical science recently. It was found out that breathing is not done equally on both nostrils: at one particular time it is easier to breathe through one nostril than the other; i.e. after every three hours, each nostril alternates. It was discovered by scientists that brain function corresponds with the nasal cycle. The left side of the brain controls logical verbal activity while right side controls creative activity; also on the side opposite to less congested nostril, greater electrical activity of the brain was found. The right side of the brain was found to be predominant when there was less obstruction in left nostril and vice versa.
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