SYNAWAKE
Brainwaves
Brainwave Frequencies Explained: Delta, Theta, Alpha, Beta, Gamma
Your brain is always active, and that activity can be measured as waves of different speeds. Scientists group them into five bands. Here is what each one means, in plain words.
The five bands at a glance
| Band | Hz | Linked to | Good for |
|---|---|---|---|
| Gamma | 30–100 | Peak focus, processing information | Short bursts of concentration |
| Beta | 13–30 | Alert, busy, thinking | Work and study |
| Alpha | 8–12 | Relaxed but awake | Breaks, unwinding, light meditation |
| Theta | 4–7 | Drowsy, dreamy, deep meditation | Meditation, falling asleep |
| Delta | 0.5–4 | Deep, dreamless sleep | Sleep |
Delta (0.5–4 Hz): deep sleep
The slowest waves. They are strongest in deep sleep, the most restoring part of the night. Delta binaural beats (often 1–3 Hz) are used in sleep sessions.
Theta (4–7 Hz): the dreamy edge of sleep
Theta shows up when you are very drowsy, in light sleep and in deep meditation. Many meditators use Theta sessions (around 6 Hz) to go inward.
Alpha (8–12 Hz): relaxed and awake
Close your eyes and relax, and Alpha usually gets stronger. It's the calm-but-present state: after work, on a walk, with a cup of tea. Alpha sessions (around 10 Hz) are a good place to start.
Beta (13–30 Hz): focus and a busy mind
Beta is your everyday thinking mode. A bit of it helps you focus; too much can feel like a racing mind. Low Beta (around 14–16 Hz) is popular for work and study music.
Gamma (30–100 Hz): peak concentration
The fastest band, linked to intense focus and combining information. 40 Hz is the most researched Gamma frequency. Gamma sessions are best kept short.
Which one should I choose?
- Can't sleep? Delta.
- Want to meditate deeper? Theta.
- Stressed and want to unwind? Alpha.
- Need to focus? Beta, or Gamma for short sprints.
Not sure? The free Mind Check on synawake.com asks how you feel and suggests a sound.
Your brain always uses several bands at once; one just becomes stronger depending on what you do. Binaural beats are thought to gently encourage a band, but research is still limited, so treat them as a relaxation aid, not a switch.
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Listen to a free previewQuestions
Which brainwave is best for sleep?
Delta waves (0.5 to 4 Hz) are linked to deep sleep. Theta (4 to 7 Hz) is linked to drowsiness and falling asleep.
Which brainwave is best for focus?
Beta (13 to 30 Hz) is linked to alert thinking. Some people also use 40 Hz Gamma for short periods of concentration.
What frequency is Alpha?
Alpha waves are 8 to 12 Hz and are linked to a relaxed but awake state.
Synawake is relaxation and focus music, not a medical treatment. It does not diagnose, treat or cure any condition. Don't listen while driving or operating machines. If you have epilepsy, a seizure disorder or a heart condition, ask your doctor before using binaural beats. If sleep problems or anxiety last a long time, please talk to a doctor or therapist.