Transcranial Electrical Stimulation (tES) applies a weak, non-invasive electrical current to the scalp to modulate neuronal activity, either increasing or decreasing excitability in targeted brain regions. Its relevance to healthspan centers on the potential to enhance cognitive functions like memory and learning, improve mood, and possibly offer neuroprotective benefits, thereby aiming to preserve brain health and resilience against age-related cognitive decline.
Verdict
Experimental tool for cognitive enhancement; long-term healthspan impact is unproven.
HEALTHSPAN IMPACT
Experimental
RISK LEVEL
Low
EVIDENCE GRADE
B
MONTHLY COST
$300 - $1500
Protocol
- Daily or weekly sessions of 20-30 minutes at 1-2 mA are common in research.
- Specific electrode placements (montages) are used to target different brain regions.
Flags
- Effectiveness is highly dependent on precise electrode placement (montage).
- Long-term effects of chronic, repeated use are largely unknown.
- Risk of skin irritation or minor burns at electrode sites if not applied correctly.
- Contraindicated for individuals with epilepsy, brain implants, or pacemakers.
- Quality and safety of direct-to-consumer devices vary significantly.