Information about Somatic Experiencing and Peter Levine click here.
Grounding yourself, can be as simple as noticing how you are in the moment and offer yourself some compassion. Here is a list of grounding techniques:
Breathing, is something that we do without thought, which means we are not paying attention. Paying attention to and managing your breath can help with anxiety and grounding. Here are some links:
For First Responders:
Cheryl Regehr and Ted Bober: