Hagai Rossman

Our new study @NatureMedicine from the Human Phenotype Project: Analyzing diet and microbiome data from 10,000+ people, we found that what you eat is strongly linked to which microbes live in your gut, down to specific foods like coffee, yogurt, and milk driving distinct microbial signatures. We also simulate personalized dietary interventions with predicted microbiome shift effects that are associated with improvements in cardiometabolic health Read here: nature.com/articles/s4159… HPP: humanphenotypeproject.org/home

Our new preprint on a gait foundation model that we developed from videos of over 3,400 people walking and doing other motor tasks. This 3D skeletal motion model can predict diverse human traits and disease conditions arxiv.org/abs/2603.25283

@dvir_a @TechnionLive Congrats 👏

Happy to share that I’ve been promoted to Associate Professor at the @TechnionLive. Grateful to my students, colleagues, and collaborators who made this possible.

What you eat today shapes your sleep tonight. On higher-fiber, more plant-diverse days, people experience more deep and REM sleep, less light and fragmented sleep, and have a lower overnight heart rate. On days with more processed foods and saturated fat, nighttime wakefulness tends to be higher with a less restorative sleep pattern (less deep/REM sleep). And when dinner makes up a larger share of daily calories, people sleep longer with a higher overnight heart rate. A longer interval between one's last meal and bed time (about 4 vs. 2 hours) is associated with a lower overnight heart rate. Long-term healthy eating patterns are essential for good sleep, but this new study argues that even day-to-day dietary variations affect how well or how poorly we sleep.

@SarahKohn276202 Lead author: @mashaashkolnik

Preprint: medrxiv.org/content/10.648… Prior work: - HPP overview: nature.com/articles/s4159… - HPP sleep phenotyping (@SarahKohn276202 ): nature.com/articles/s4159…

Can what you eat today measurably change how you sleep tonight? In 4,793 person-nights from the Human Phenotype Project (HPP), we linked real-time dietary logs with high-resolution, multi-stage wearable sleep recordings and applied a target-trial emulation framework to estimate day-level effects on next-night sleep physiology. Key findings: • Higher fiber density → ↑ deep & REM sleep, ↓ light sleep, ↓ nocturnal heart rate • Greater plant diversity & whole-plant intake → improved nocturnal autonomic down-regulation • Meal timing → modulates sleep duration and cardiovascular tone • Macronutrient energy distribution (carbs/fat/protein %) → no robust short-term effects Small, realistic day-to-day dietary differences appear to produce measurable physiological changes by the next night. Project led by the bright @ShkolnikMa15652 from @segal_eran Lab, In collaboration with @galsapir_ , @smadarshilo , @YeelaTalmor @WeizmannScience , @Pheno_AI , @mbzuai , Tel Aviv University, Schneider Children’s Medical Center of Israel, and Rabin Medical Center

@tommy_da_cat @AstraZeneca Working closely with many (1000+) colabs

@tommy_da_cat @AstraZeneca Agentic AI at pharma - an opportunity to actually connect across data sources Traditional approach vs agentic approach where is the human in this new era? like a "Navigator" - make sure its going in the right direction Its early days

Now at #HPPGlobal2026 Hiraoki Kitano on "AI as a Scientist" Challenges and suggests the "Nobel Turing Challenge" - can we build a machine that can make a discovery at that scale? AI has always been pushed by grand challenges like chess, Go, DARPA challenge But scientific discovery is an open-ended problem