Yes, Mindfulness is improving wellbeing and not just for teachers and students, (as one of the many factors), and is also going to change how you think. Our book Mindfulness, Meditation, Trance, and the State of Flow: Similarities, Differences, and the Lessons Learned From Emotionally Expressive Ancient Art goes deeper on this in this topic https://www.amazon.com/Mindfulness-Meditation-Trance-State-Flow-ebook/dp/B087ZY6N6X/, but if you can to read only one book, start with our book on parenting: Parenting, Human Needs, Cherished Values, and Wisdom That Never Fades—Captivating Ancient Art Shows What It Means to Be Human: The Story of Humanity, Our Shared Experiences, and Our Emotions https://www.amazon.com/Parenting-Cherished-Values-Fades-Captivating-Ancient-ebook/dp/B0CB4NV871/ - Both of these books with their illustration of emotionally expressive ancient art show that mindfulness has been around for thousands if not tens of thousands of years. - Keep in mind also that the word mindfulness is often used very superficially almost just as a slogan, and success is really about knowing what to do and having the personal experience first to rely on. Hope that helps.
I believe so. Mindfulness has been shown to improve attention and attending to the present. It also improves the mood and calms down students. Mindfulness has been found to have effects on a person's SWB. This, in turn, will affect the overall learning potential of the child. Also, mindfulness teaches self-care, kindness, and compassion, which will impact SEL.