Reclaim Your Vitality

with the
Female Longevity Institute

FLI MD is a personalized care and longevity practice
designed for women in midlife.

We help you reclaim your vitality today and transform the way you age over time for increased healthspan, which is the length of time you live in good health free from the diseases and disabilities of aging.

Request a Consultation

Reclaim Your Vitality

with the
Female Longevity Institute

FLI MD is a personalized care and longevity practice designed for women in midlife.

We help you reclaim your vitality today and transform the way you age over time for increased healthspan, which is the length of time you live in good health free from the diseases and disabilities of aging.

Request A Consultation
The FLI Method
 

What to Expect

The FLI Method can optimize hormones, heal your perimenopausal symptoms and help prevent chronic diseases that really begin in midlife.

 

"Since starting this program, my energy levels have soared, and despite the tremendous stress I'm under at work, I feel more capable than ever. In 3 months I’ve lost 7 pounds while gaining muscle. Now, I get to enjoy the wisdom of my 40s while having the energy I had in my 20s!
Thank you for helping me feel vibrant again!

S. A. age 42

Effective strategies for health in your early 30s no longer serve you

Discover how the FLI Method will maximize your immediate and long-term health with personalized preventative care.

  •  Reclaim vitality
  •  Restore mental clarity
  •  Boost sexual wellness
  •  Alleviate stress and enhance mood
  •  Improve sleep
  •  Optimize body composition
Ready to Transform?

Download our brochure

What to expect, pricing and more.

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Transform the Way You Age


The traditional medical system largely dismisses women as they exit their reproductive years. The often harsh  symptoms of perimenopause and the chronic diseases of old age are treated as something to be tolerated as an inevitable part of aging.  This is neither true nor acceptable.

In addition to the weight gain, night sweats, hot flashes, mood swings, brain fog, anxiety and loss of energy, the underlying sharp decline of hormone production experienced uniquely by women initiates the diseases that present in old age.  Your genes are not your destiny: 85% of your health outcome can be shaped by lifestyle and personalized interventions.

Together, we optimize your health so that you can continue to bring your wisdom, empathy and power to the world.

Meet Our Team of 
Women's Health Experts

Krista Ramonas, MD, FAAO

MEDICAL ADVISOR, Double Board Certified Physician & Surgeon

Krista is Founder and CEO of a Longevity medical practice in San Francisco focused on disease prevention. She is currently double Board Certified in Ophthalmology and is a diplomat of the Board of American Academy of Anti-Aging Physicians. She is passionate about advanced personalized preventive care which allows for early intervention and dramatic health risk reduction.

Diana Thiara, MD

Medical Advisor, Board-certified Internist. UCSF Medical Director, Weight Management Program

Diana is a weight management specialist who has helped 1,000s of patients live their healthiest, most vital lives by focusing on their nutrition, sleep, exercise and stress reduction. Diana designed the FLI MD Nutrition Plan and Metabolic Reset program.

Felice Gersh, MD

Medical Advisor, Board-certified in Integrative Medicine and OB-GYN

She is a globally-renowned expert in women’s health and complex disease management. Adept in all areas of women’s health, Dr. Gersh is especially renowned for her expertise in female hormones. She approaches the female aging process in a holistic manner, comprehensively addressing the impacts of circadian rhythm disruption, sleep disturbances, pharmaceuticals, environmental toxins, nutrient and hormonal deficiencies, gut microbiome imbalances, and chronic stress.

Lyssa Jaye

Board-certified family nurse practitioner and functional nutrition and health practitioner

For almost 20 years, Lyssa Jaye has committed her career to partnering with women in their healthcare journeys. She is a board certified family nurse practitioner and certified functional nutrition and women’s health provider. With her understanding of both conventional and functional modalities, specialized testing, hormone therapy and ways to discover and address imbalances that are at the root of most health conditions, she provides personalized, effective care to each woman she sees.

Celest Waechter

PRECISION MEDICINE & HORMONE HEALTH COACH, NBC-HWC

Celest holds a Bachelor of Science in Kinesiology with a double minor in Neuroscience and Psychology. With over 16 years of experience, she is a Certified Health Coach, yoga instructor, breath coach, and CrossFit trainer. Celest advocates for holistic health, using a root-cause approach, blending ancient wisdom with modern science to bring awareness, guidance, and resources to each client’s life.

By submitting this form, you agree to receive ongoing updates from FLI MD

Contact Us
2100 Webster Street, 
Suite 300
San Francisco, CA 94115
[email protected]
+1 707-653-6450