Frequency Atlas

Beta (High)

30.00 Hz

30 Hz is the upper edge of the beta band of brain activity, as recorded by EEG (sensors on the scalp).

How well is this supported?

MeasuredEEG band

Measured directly, or defined by a published standard.

The band is a standard way of describing EEG recordings. Band edges are conventions, and what a person experiences varies. This is not medical information.

What the four labels meanChecked against sources September 27, 2026

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About this number

30 Hz is the upper edge of the beta band of brain activity, as recorded by EEG (sensors on the scalp). A 2017 glossary from the International Federation of Clinical Neurophysiology (IFCN) puts beta at 14 to 30 Hz and gamma above 30 Hz. Band edges are conventions and vary by source. Beta activity is associated with active wakefulness.

What is said about it

What is said, not what was measured

Popular descriptions link this range to intense focus, anxiety, stress and peak performance, and say that sustained high beta may indicate overthinking. Links between beta activity and anxiety are reported in some studies and are not diagnostic.

Facts

Frequency
30.00 Hz
Kind of statement
EEG band
Filed under
Brainwave bands

Sources

  • IFCN glossary of EEG terms

    The standard definitions of the delta, theta, alpha, beta and gamma bands.

    N. Kane et al., Clinical Neurophysiology Practice 2 (2017) 170–185.

    View source: IFCN glossary of EEG terms

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