non-pregnant female participants using effective contraception
participants with baseline Root Mean Square of Successive Differences (RMSSD, a measure of the variation in time between consecutive heartbeats) within 1 SD below the mean identified by Tegenge et al (2020): Women Men Age Bin Mean Mean- 1SD Mean Mean- 1SD 15-19\* 73.8 23.3 70.8. 22 20-24 64.7 17.4 57.3 17.2 25-29 58.0 18 52.1 13.3 \*Only individuals \>18 years old are eligible, but the 15-19 age bin will be used for participants falling in this age range.
You may not be if
taking medication for psychiatric, cardiovascular or chronic inflammatory condition (e.g., rheumatoid arthritis)
used recreational drugs within past 2 weeks
history of serious mental health conditions (including schizophrenia, other psychotic disorder, bipolar disorder, or severe major depressive disorder), cardiovascular disease, or neurological disease
skin irritation at stimulation sites
pregnant women
engaged in meditation more than 4 times in the past two weeks
adults unable to consent
prisoners
students for whom the investigator have direct access to or influence on their grades
Clareo Health | Stimulating Your Nervous System for Calm (SYNC) Study