Jemima Meyer

Co-founder of HealthLeap (proactive AI screening for overlooked conditions in hospitals)

[Jemima Meyer @jemima_meyer]

@siamakfr @josiahbuild Lol surprise

[Seth Bannon @sethbannon]

We did something we'd never done by leading Healthleap's pre-seed even though they were based in South Africa.

It was clear @josiahbuild and his co-founder/sister Jemima would move mountains to solve clinical malnutrition.

Now made in SF with some of the world's best partners.

[Jemima Meyer @jemima_meyer]

@StevenPWalsh The diagnoses only come because the patients actually get treated :)
Because the treatments help patients get fewer infections/complications, leave hospital earlier, make them less likely to die… healthcare spend will actually go down

[Oana Olteanu @oanaolt]

And my own blogpost and reasoning https://t.co/TS5zFpZrua

[Jemima Meyer @jemima_meyer]

@Alfred_Lin The support from Sequoia’s team has meant a lot.

[Jemima Meyer @jemima_meyer]

@josiahbuild I have to pinch myself every day.

[Josiah Meyer @josiahbuild]

Announcing $38M Seed & Series A from Sequoia, First Round, and Hummingbird.

Healthleap's mission is to improve the health outcomes of as many people as possible.

Results so far:
• faster healing resulting in 1.6 shorter hospital stays per patient flagged as at risk by HealthLeap (Penn)
• 39% more appropriate diagnoses, same staff (Cedars-Sinai)
• 3 → 50+ hospitals in the past year

We're hiring across all roles.

[Oana Olteanu @oanaolt]

Proud this morning to share that HealthLeap AI is coming out of stealth, with funding from @sequoia, @firstround and @HummingbirdVC.

Been a backer of @josiahbuild and @jemima_meyer from the seed and I could not be more happy for this sister brother South African duo.

It's rare to meet founders who are are super driven, super smart and yet keep it real and humble. If you're thinking to work at an AI company with real impact, societal and economical please check out Health Leap. My reasoning why I invested in them below.

And if you are thinking to start a company and see yourself in the description reach out, I'm writing $500,000 checks @MotiveForce for founders who don't need permission to start.

[Jemima Meyer @jemima_meyer]

Just looked through 100 candidate profiles, and for the part where they say what interests them about the role, I grinned each time something sounded like A PERSON wrote it.

The rest of the time, I entertained myself guessing which language model they used.

[Clement Lee, MD, MSc @ClementLeeMD]

I am BEGGING medical researchers to please think twice before choosing a random medical abbreviation 😭

there HAS to be another way to shorten "non-invasive group A streptococcal disease"

[Jemima Meyer @jemima_meyer]

@oanaolt SFPL main library used to have a daily or near-daily chess club! Hopefully it’s still going strong

[World Health Organization (WHO) @WHO]

Finally, today is World AIDS Day.

Over almost 45 years, we have come a long way in the response to HIV.

New HIV infections have dropped by 61% since the peak in 1996, and AIDS-related deaths have dropped by 70% since 2004.

HIV has been transformed from a certain death sentence into a preventable and treatable disease.

But those gains are now at risk.

Sharp reductions in international funding this year have led to disruptions in services for HIV prevention, testing and treatment.

At the same time, progress against HIV has largely stalled. There were 1.3 million new HIV infections last year, the same number as the previous two years.

We face significant challenges, but we also have significant opportunities.

Earlier this year, WHO recommended and prequalified lenacapivir, a new long-acting injectable for the prevention of HIV.

This is the first time that guidelines have been published in parallel with prequalification, to accelerate access.

WHO calls on all countries to rapidly scale up use of lenacapivir for people at risk of HIV, as well as access to testing and treatment for those living with HIV but who may not know it yet.

Our ambition is not modest, but it is achievable: to end the AIDS epidemic.

[M @dreamsofpoiesis]

Ok but when is MyChart gonna put in DM’s to other patients

[Jemima Meyer @jemima_meyer]

@thekaransinghal @PendaHealth @OpenAI This seems great. Discreet. Background flags only. Clinicians get a second opinion if they want it.

[David @DavidSHolz]

we're hurtling through the void on top of a ball of lava. the lava has a very thin crust and a tiny bit of ice. the ice is being liquidified by a ball of plasma 94 million miles away as we spin around it at 15 miles a second. it's all so weird but you gotta feel lucky somehow

[Jemima Meyer @jemima_meyer]

LLMs can amplify existing biases but they also have unique potential to assess reasoning errors, e.g., if we force them to self-reflect or have a multi-agent debate. 🧠

[npj Digital Medicine @npjDigitalMed]

As large language models are introduced into healthcare and clinical decision-making, these systems are at risk of inheriting – and even amplifying – cognitive biases.

https://t.co/LEk04OfvQF

[Jemima Meyer @jemima_meyer]

@oanaolt 🫶💃can’t wait to geek out w u, Oana

[Academy of American Poets @POETSorg]

Let America be America again.
Let it be the dream it used to be.
—Langston Hughes, b.Feb 1, 1902 #BlackHistoryMonth https://t.co/vKlnORKsdm

[Paul Wischmeyer MD @Paul_Wischmeyer]

⚠️ No Low-Calorie Diets for Obese ICU patients!
Severe calorie restriction in critical illness can lead to rapid muscle loss, impaired wound healing, immune dysfunction, and worse outcomes—even in patients with obesity.

🧠 Obesity ≠ Overnourished in the ICU.
🛌 Critical illness is a catabolic crisis—not the time for weight loss.

✅ Prioritize protein, preserve lean body mass, and support functional recovery.

Let’s shift from “starving the sick” to fueling survival.

🖥️ FREE ONLINE LECTURE-Nutrition Delivery in the Obese ICU Patients
🔗 https://t.co/5Xtc0u3D0X
#icunutrition #icurehab #foamcc

[Nikhil Krishnan @nikillinit]

We hosted the second OOP healthcare AI hackathon last month.

We think there’s a lot of room for AI to change healthcare, and each time we do this we see a lot of really interesting ideas

Below are the projects from last year - these were all made from scratch in 36 hours