Why Do You Get Hangry?

Hanger is the grumpiness you feel when you are hungry. We’ve all been there, but what’s the science behind it?

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Sources:
http://www.pnas.org/content/111/17/6254
https://www.eurekalert.org/emb_releases/2018-01/uoe-gim012218.php
https://www.ncbi.nlm.nih.gov/pubmed/21064166
https://search.proquest.com/openview/a6ee662b30e2cc5257952e157ca4a98f/1?pq-origsite=gscholar&cbl=18750&diss=y
https://www.sciencedirect.com/science/article/pii/S0376635702000827
https://www.sciencedirect.com/science/article/pii/B9780123743879000015
https://link.springer.com/chapter/10.1007/978-1-4613-4467-4_6
https://theconversation.com/health-check-the-science-of-hangry-or-why-some-people-get-grumpy-when-theyre-hungry-37229
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC515123/

Images:
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https://commons.wikimedia.org/wiki/File:Panthera_tigris_-Franklin_Park_Zoo,_Massachusetts,_USA-8a_(1).jpg
https://commons.wikimedia.org/wiki/File:Neuropeptide_Y.png