Why Does Humidity Make It Feel Hotter?

Captions provided by CCTubes – Captioning the Internet! It turns out there’s a scientific explanation behind the saying, “It’s not the heat, it’s the humidity!” Learn why a hot and humid day feels so dismal and some tips to avoid the really sweaty, gross days on today’s Quick Question!

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Sources:
http://media.bom.gov.au/social/blog/1324/feeling-hot-and-bothered-its-not-the-humidity-its-the-dew-point/
http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/responses_to_environment/homeostasisrev3.shtml
http://www.weather.gov/arx/why_dewpoint_vs_humidity
https://www.atmos.umd.edu/~stevenb/vapor/
http://hyperphysics.phy-astr.gsu.edu/hbase/Kinetic/relhum.html
http://www.dpcalc.org/