“Breathwork has taken me on an exciting and wonderful journey of discovery — away from rational thinking and towards feeling and intuitive experience.

It led me to a deeper connection with myself and others, to almost forgotten emotions and feelings, to deep understanding and acceptance. I’m very grateful for this experience and for Sina’s loving, passionate, and inspiring guidance throughout the sessions."

Liesa, Germany

"Sina has accompanied me over the past few weeks with loving mindfulness, deep knowledge, and great patience. In such a short time, I was able to recognize and remember so much — who I am beneath all my belief systems. I felt safe at all times, and so much was able to be seen and given space in our sessions. These deep processes helped me release old patterns. Inner balance, being in connection, self-confidence, and a sense of trust in myself — this new feeling of life is what I carry with me from my sessions with Sina, full of joyful wonder. I’m deeply grateful that I had the opportunity to walk this path with her."

M.S., Germany

"Trying breathwork with Sina was an amazing experience for me: it gave me a glimpse into a loving relationship with myself — my body, my emotions, my life — with other people, and with the whole world around me. I felt a new sense of connection and a fresh perspective. I’m truly grateful for the journey so far and can’t wait to see what lies ahead!"

Lucia, Germany

"I have worked with Sina in two sessions so far and would work with her and trust her anytime. She is open, professional, dedicated, sincere and funny. Her deep connection to herself, makes her understand others with ease and compassion."

Leonie, Germany

"In our one-on-one sessions, Sina consistently gives me the feeling of being understood on a very deep level. I am always amazed at how each session brings profound insight and realization, followed by emotional liberation. I wish I had met Sina earlier and I’m sure it would have significantly shortened my path of suffering. I wholeheartedly recommend her!"

Mathias, Germany

„I’ve done the core transformation process and the Shamanic healing, it helped me to heal my inner child. I’m so grateful that I had the opportunity to have come across a fb post where I was directed to her. Each therapy moved something within that led me towards a self healing internal process.“

Gina, Mexico

„My journey with Sina and Luis into the 9 Underworlds was incredibly beautiful and somehow also very familiar, even though I had never done anything like this before...

Sina gently and at the same time very securely guided me through the 9 Underworlds, and Luis powerfully accompanied us. It was wonderful – feeling that supportive, guiding energy and literally seeing and feeling the two of them in the form of power animals during my journey. It was an unforgettable experience. A heartfelt thank you for that.“

Lera Lange, Integrative Breathwork Therapist, Germany

"I was deeply impressed by how profound the changes were after just one session with Sina. A lot of the pressure I had been putting on myself dissolved. I feel much freer in my decisions, whether to take on tasks and responsibilities or decline them, allowing me to pay more attention to myself and my energy. I had been working on this in both my professional and personal life for a long time, but I couldn’t make progress on the crucial last step for months. Through the Breathwork with Sina, the knot finally loosened – I can repeatedly feel this newfound freedom in my everyday life and am grateful for it."

B., Germany

"Sina’s sessions were very helpful in many ways. For starters, it integrates the body as central in being in the world. Only talking often falls short after a therapeutic session. However, with Sina, I was challenged to fuel my own batteries and my own sense of self. After the end of our sessions, I acquired basic yet powerful techniques to help myself, connect with my inner world, and find patience and understanding in the chaotic and uncertain world in which we all live in."

Dooa, Egypt

"Uncovering old and existing patterns, dissolving false beliefs, and defining and internalizing new ones requires a lot of sensitivity, courage, and commitment.

The process was initiated when I participated in my first Breathwork group session with Sina. The power that resides in our breath overwhelmed me.

To go deeper and confront my personal fears in a targeted way, I prefer working 1:1 with Sina. In the two-hour individual sessions, we focus on my specific issues, uncover beliefs and hidden patterns, and dissolve them with the power of breath. Sina's extraordinary sensitivity, her extensive experience with the breathwork technique, and her scientific background enrich me in every session and reveal new perspectives. Through the deep trust in Sina, I can fully surrender to the breath in the individual sessions, allowing deep and lasting healing."

Franziska, Germany

"Even the first group Breathwork session with Sina moved me more than an entire year of psychotherapy.

At that point, I didn't even know that such states of consciousness could be reached. It truly feels like the breath paves the way to hidden emotional worries and issues and dissolves them. I felt freer after every Breathwork session and, after a long search, finally felt like I had found something that moves me forward! I can only recommend everyone to try it for themselves. Sina = powerful medicine woman! ;)"

M., Germany

"Breathwork truly releases and sets things in motion. It's amazing what surfaces during the breathing process in the form of long-forgotten images, memories, and scenes, and what the subconscious produces. Add to that the clarifying conversations with Sina – a blend of coaching and psychotherapy – work on belief systems, very practical and valuable book recommendations, and, as a result, helpful insights and impulses that can sustainably change things in everyday life and in one's perspective on the world.

And Sina does this wonderfully, making you feel well-supported and seen. Thank you so much! :)"

Wiebke, Germany

"I had two sessions with Sina and found both to be very powerful.

Sina's openness, focus, and kindness during the process created a safe space that allowed me to explore the emotions that arose.

Both times, I reached a place of stillness that has remained and deepened even after the sessions. I also appreciated how Sina incorporated Qi-Gong and meditation into the breathwork.

Thank you, Sina."

Joe Britto, Canada

"Dear Sina, thank you so much for this wonderful session earlier. I’m still deeply moved, impressed, and uplifted by the experience.

I would be happy to join again next Sunday.

Warm regards, thank you, all the best and love from a soulful Franz."

Franz, Germany

"Sina has a way of creating space, even online, that makes you feel seen and at ease. I feel so greatful I was able to participate in her Befriending Your Autonomic Nervous System class. The atmosphere Sina created with our group felt intimate and made me comfortable to share. The way Sina is able to present this information in a way that was easily understood and provide us real tools to immediately start using was so helpful. I am in a much better relationship with my ANS since this class. Thank you Sina!"

Katie B., USA

"I was in an emotional crisis when Sina was recommended to me by a friend. I have to admit, I had no idea what to expect. But I knew that after many frustrating attempts to pull myself out of the hole, something had to change. I don’t know how Sina does it, but I was able to open up immediately without any trouble and felt like I was talking to someone familiar. Through our conversations and especially the breathing, so many knots came to light that I would never have suspected. Looking back, I was probably so close to it that it took the focus on breathing and Sina's guidance to recognize it. The most valuable part of the sessions with Sina for me was definitely that she helped me accept and let go of things through her guided breathing. Additionally, Sina provided me with great tools and resources outside of the sessions that I can apply for myself. Sina, I thank you from the bottom of my heart and look forward to continuing our journey!"

Luzia, Germany

"Sina's Circle of Growth was a special self-experience for me, to get to know and understand myself better through exchange with others. Over the course of a year, through the different themes – like the seasons – I was able to discover, unfold, and shed old burdens of my personality. The impulses Sina provided were always helpful in discovering myself and preparing for each session. The group sessions with others, as well as their experiences and perspectives, were incredibly helpful in better recognizing myself and feeling connected in my growth. I hadn't known about Breathwork before and found this form of meditation to be supportive in feeling myself beyond my thoughts.

In short – every session was a joy and ended with excitement for the next one.”

Anna, Germany

"Dr. Sina Birkholz provided an enriching and well-founded course on how to better understand and address 'stress' caused by the autonomous nervous system. She shared effective tools and materials so that each of us could become more aware of our altered states and choose how best to return to a more manageable state. Thank you!"

Janet Swartz, Mexico

"The Circle of Growth was a wonderful experience for me. After a short time, a great sense of closeness and familiarity developed within the group. Together, we were able to create a safe space where we supported each other, laughed, cried, and connected deeply with ourselves and the group.

Sina is great at giving this space structure so that the individual participants can feel free and something collective can emerge. The shared breathwork and exchange in this group were a special experience for me, one that I wouldn't want to miss and truly appreciate."

Sven, 42, Germany

"The monthly sessions with Sina and the group were like an anchor/a fixed appointment to spend time with myself and for myself. A brief pause from everything that the hectic everyday life can bring. Time for self-reflection.

I found the previous journaling prompts or follow-up reflection questions very valuable, as they allowed me to consciously engage with the respective topic again.

I can only recommend the Circle of Growth to anyone, as a low-threshold and regular way to stay in contact with oneself, learn more about oneself, and have the opportunity to grow."

Janine, Social Worker

"I would highly recommend this class.

I am using the tools learned in the class daily. It was fun to meet and interact with people from all over the world.

Sina was great teacher!"

Brenda, USA

"The Nervous System Course was a wonderful and holistic experience with an ocean of tools as take-away. I can totally recommend the investment of time, money and commitment. You will be enriched by the end of the course with the opportunity to work on the topic afterwards as well."

Janine, 28, Germany