Meditation
and brain waves
It is a
widely known fact that meditation plays an important role in improving both our
physical and mental health. It is obvious that meditation also affects our
brain. Our brain uses electromagnetic energy to function and this electrical
activity of the brain is displayed in the form of brain waves. Meditation
causes an alteration in these brain waves.
How Does Meditation Affect Our Brain
Waves?
When we
are in a state of meditation, our brain waves pass through different phases of
relaxation. Whether in a state of rest, activity or sleep, our brain always
displays some level of electrical activity. The frequency and location of
electrical brain waves is measured with the help of EEG
(electroencephalography) electrodes, which are placed in standard areas of the
scalp using a custom-made hat.
Each
frequency, measured in cycles per second (Hz), has its own set of
characteristics representing a specific level of brain activity and hence a
unique state of consciousness.
Beta
(12-30Hz): Beta brain waves are associated with normal waking consciousness and
a heightened state of alertness, logic and critical reasoning. As you go about
your daily activities you are at Beta. Although important for effectively
functioning in everyday life, higher Beta levels translate into stress, anxiety
and restlessness. With the majority of adults primarily operating at Beta
during their waking hours it is little wonder that stress is today’s most
common health problem. The voice of Beta is the little nagging chatterbox of
your inner critic, which becomes louder and more relentless the higher you go
in the range.
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