theta wave

theta   wave

brain   waves

Brain   waves   can   be   divided   into   four   categories   according   to   their   frequency:

Beta   waves   (conscious).

Alpha   waves   (bridge   consciousness).

Theta   waves   (subconscious).

Delta   waves   (unconscious).

Beta   waves:

sick   waves.   Nervous   brain   waves,   low   immunity,   easy   to   get   sick.

Alpha   waves:

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