Another large number which is of the order of Dirac large number 1040 has come to our notice in life sciences. This is the ratio of smallest time scale of 40 Hz oscillation in neuronal system of brain and the smallest timescale called Planck time in the present universe. Since 40 Hz oscillations dominate at awake and REM sleep states, our findings may shed new light on the issues of life and consciousness and the fine tuning of the fundamental constants in the present universe.
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