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\title{AAAS 2017 Annual Meeting AMA Series: Hi reddit! I'm Eran Elinav and I
study the diet-microbiome-metabolism axis. Ask me anything!}



\author[1]{AAASmtg2017 }%
\author[1]{r/Science AMAs}%
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  \date{April 24, 2026}


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\begin{abstract}
Hi reddit! The microbes that inhabit humans -- collectively called the
microbiome -- play a critical role in human development and physiology
and can be considered an additional organ. They play major roles in food
digestion, immune system development, and inflammation and directly
affect the growing epidemics of obesity, diabetes, and asthma in
industrialized societies over the past 50 years. I'm Eran Elinav of the
Weizmann Institute of Science, and I study how the microbiome effects
humans (especially in regards to their diet) as well as how it can
affect entire societies-shaping them through both common diseases and
pandemics. I'm looking forward to answering questions about the several
major ways microbes affect humans. Microbes play a major role in early
childhood development, including affecting the immune system and even
brain development. Our society's obsession with cleanliness and
antibiotics is thus having a major impact on childhood development,
including recently identified early microbiota effects on asthma.
Obesity and diabetes rates are skyrocketing worldwide, and recent data
indicate that the microbiome plays a central role, including the finding
that obesity can be transferred through feces. By understanding an
individual's microbiome, it is now possible to design a personalized
diet, resulting in weight loss. In addition, historical evidence reveals
that microbes significantly affect societal development. By studying
ancient microbial DNA, new insights have been shed on the plagues and
pandemics that have shaped our history. I'll be back at 3 pm EST to
answer your questions! Ask me anything! EDIT:Thanks so much for a
stimulating conversation, had a great time. Eran%
\end{abstract}%



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