I tried using Doppel's vibrating wristband to keep calm and stay
https://www.wareable.com/health-and-wellbeing/living-with-doppel-wearable-change-mood-7270
WEBMay 22, 2019 · Doppel says there is the research to suggest this works, in a similar way to how music might get you in the zone for a workout. Except …
DA: 6 PA: 28 MOZ Rank: 80