It is something called The Tapping Solution or EFT (Emotional Freedom Technique).
Watch this 7 minute video in Ukrainian, to learn how it works.
From the Tapping Solutions support:
“The Ukrainian Support Collection is free for everyone and can be found in The Tapping Solution Foundation Collection:https://bit.ly/UkrainianSupportCollection
When on your mobile device the app is downloaded on, the link above will take you right to it. If you send it to people who don’t yet have the app, they will just need to download the app in order to access the link and the resources.
Download for free here: https://tinyurl.com/Tappingdownload
I have seen documentaries about this resource. It has helped people who have experienced trauma in war in different places in the world. It has helped soldiers who suffer from PTSD (Post-Traumatic Stress Disorder), it has helped American parents whose children have been killed in school shootings. It has helped people with severe physical pain (back pain, debilitating headaches), too.
Ukrainian friends: please take a moment to learn about this and begin to practice it daily. It may look funny at first, but it is very effective.