Ehsan Habibi is a postdoctoral associate at the Broad Institute. He is a joint member of the Chen Lab and Aviv Regev Lab. Ehsan obtained his Ph.D. degree with cum laude distinction in molecular biology from Radboud University in the Netherlands under the supervision of Prof. Henk Stunnenberg. He studied epigenetic aspects of a new culture condition that was invented to maintain embryonic stem cells. He showed not only that these cells are a better representation of their in vivo counterpart, the E4.5 embryo, but also that they differ drastically from the traditional assumptions that has been held in the field for more than four decades. He also explored the contribution of different mechanisms involved in DNA methylation erasure (DNA Demethylation) and proposed that DNA demethylation in ESCs, PGCs, and preimplantation embryos can be formulated in a model in which impaired maintenance plays the main role. He also explored the early and transient epigenetic and transcriptional changes associated with primary monocyte-to-macrophage differentiation, and induction of innate immune tolerance or training, the main characteristics of sepsis. Ehsan is currently interested in using and developing in situ/single cell quantification methods to understand embryogenesis and tissue formation.