Flourish

maximizing performance and creativity for you and your executive team

Welcome, I’m Zhi Tsun, MD PhD

(first name pronounced like the letter Z)

I’m a Harvard and MIT-trained, integrative psychiatrist and longevity doctor. I help people live vibrantly, for as long as possible.

I completed my MD at Harvard and studied metabolism and longevity for my PhD at MIT, discovering and characterizing some of the biochemical reactions in our bodies that lead to health and disease. My PhD lab discovered some of the foundational science in longevity and is often cited by longevity experts like Peter Attia, MD. Check out the podcasts with Peter and my PhD advisor here and here. My research has given me a deep understanding of what truly impacts longevity, from cellular function to overall well-being.

I’ve personally experimented with different types of diets (caloric, time or dietary restricted) and exercise approaches, experiencing firsthand the impact they can have on mood, energy, mental acuity and stamina. I’ve taken supplements in addition to the typical pharmaceutical medications and appreciate the role each can play. I have also optimized my sleep with wearables, a cooling bed, and various bedtime routines. So the recommendations I make on sleep, diet and exercise, not only have been effective for my patients, I have also experimented personally.

How to live vibrantly for as long as possible

  • Heart attacks and strokes: #1 killer worldwide, 50% men and 33% women have their event before age 65. Yet very preventable using a longevity approach. Disease process starts in teenage years, 80% have blood vessel damage by age 40.

    Alzheimer’s and dementia: not treatable but actually very preventable! 

    Cancer: mostly bad luck unless cancer runs in your family. Early detection and treatment is best. 

    Diabetes, metabolic dysfunction, and inflammation: like adding gas to the fires above

  • As a 90+ yr old, how do you continue doing the things you love? Like staying physically active, picking up your grandchildren without injury, and traveling with ease? 

    Build and maintain muscle mass: without dedicated effort, we can lose ~50% of our muscle mass by our 80s and 90s 

    Strength: beyond age 65, we can lose 50-80% of our strength

    Stability: falling is the #1 cause of fatal and non-fatal injuries in older adults

    Stamina: our muscle fibers and strength of our heart and lungs decline with age

  • What does flourishing look like for you? For many, this includes feeling happy, energized in the things you do, having a sense of purpose, accomplishment, and feeling connected to yourself and in your relationships. 

    Living in alignment with your values: what’s most important to you in life? Are you making decisions and allocating time in alignment with your values? 

    Sleep: do you have trouble falling asleep or staying asleep? Do you wake up feeling rejuvenated and excited for the day?

    Emotional health: anxiety and depression are common in older age but entirely preventable

    Relationships: how close are you with your spouse? Your children? Other close friends and family? 

My Approach

My goal is to empower you to flourish. Just treating a mental health condition doesn’t automatically result in flourishing. it requires dedicated effort to identify one’s values and to live by them. So I go beyond just treatment and equip you to live life to the fullest. Each person is unique but often this means feeling happy, energized in the things you do, having a sense of purpose, accomplishment, and cultivating meaningful relationships.

As an integrative psychiatrist, I use a holistic approach and integrate various modalities, such as:

  • Sleep Rejuvenation

  • Talk Therapy

  • Medications

  • Supplements

  • Lifestyle Coaching

  • Functional Lab Testing

  • Mind-Body Practices

  • Leadership Coaching

  • Longevity Enhancement

By addressing the root cause of your suffering and drawing from this toolkit of approaches, I empower you with the knowledge and tools to flourish.

What my patients are saying:

  • “I’m eternally grateful that you diagnosed me on the bipolar spectrum and optimized a low dose medication regimen that not just stabilized me but allowed me to stay sharp and didn’t have side effects. Your background as a founder was key for me--you really understand the challenges I faced that are unique to the founder journey.”

    -36 yr old male, venture-funded founder and CEO

  • “It’s so nice that you understand what it’s like to have Asian parents--the constant shaming and comparing, I just didn’t know what I wanted anymore. Thank you for helping me live my life on my terms”

    -35 yr old Asian engineer at a big tech company

  • “When I met you, I was in a very painful and hopeless place. You helped me find myself, work through my childhood trauma, and stand up for myself and move on from abusive relationships”

    -22 yr old female

  • “I had no idea how much was going on inside me. Thank you for helping me reconnect with my emotions, navigate my transition to retirement and be closer to my kids”

    -67 yr old male

  • “You helped me balance my duty as a daughter-in-law while advocating for myself with my husband and mother-in-law, to ultimately do what’s best for my kids and family”

    -33 yr old female in cross-cultural family

  • "Wow, I'm so grateful that you've fixed my sleep. I haven't had a good night's sleep for decades and now I feel so rested and alive!"

    -52 yr old female

Schedule a Free Consultation

I offer a free 20 minute consultation video call to learn more about you and your goals to see if we would be a good fit. Please read my Services page to learn more about my appointment types and fees before scheduling our call.