{"id":35766,"date":"2019-12-17T10:53:30","date_gmt":"2019-12-17T18:53:30","guid":{"rendered":"https:\/\/selfhacked.com\/?p=35766"},"modified":"2021-11-03T02:05:40","modified_gmt":"2021-11-03T09:05:40","slug":"tacs-benefits","status":"publish","type":"post","link":"https:\/\/selfhacked.com\/blog\/tacs-benefits\/","title":{"rendered":"Top 17 Benefits of tACS + Health Risks"},"content":{"rendered":"

tACS, transcranial alternating current stimulation, involves using two or more electrodes to send sinusoidal waveforms of electricity onto certain positions of the skull in the hopes that it will change brain function. Some frequencies may need to be combined to get the right effects. Read this post to learn more about the potential benefits and drawbacks of tACS.<\/p>\n

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<\/a>tACS Brain Stimulation<\/strong><\/span><\/h2>\n

EEGs (electroencephalography; brain voltage readers) commonly use a Fourier Transformation to convert linear-time sequences of voltage changes in the brain to the domain of frequencies. This is where we get alpha (8-12.5 Hz) for drowsiness, beta (12.5-30 Hz) for alertness, theta (4-7 Hz) for early NREM sleep<\/a>, and delta (0.1-3 Hz) for deep NREM sleep.<\/p>\n

While theta and delta brainwaves are increased by alcohol, beta brainwaves can be increased with LSD<\/a>, mescaline, and psilocybin<\/a> [R<\/a>, R<\/a>].<\/p>\n

In the human brain, there are frequency bands that correspond to ultradian rhythm, a cycle of states of consciousness each with dominant brainwaves. The brainwaves cycle from rest to rest every 100 minutes (with activity between) and from wakefulness to wakefulness every three to eight hours (with drowsiness between) [R<\/a>].<\/p>\n

Recording and analyzing our own brain signals has the potential to help us schedule our work life on cycles of states of consciousness. This may allow us to work harder in wakeful activity states and take short breaks in resting states and long breaks in resting drowsy states.<\/p>\n

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<\/a>Snapshot<\/strong><\/span><\/h3>\n

<\/a>Proponents<\/strong><\/h4>\n