Editing Humidity (section)

=== Human health ===
Higher humidity reduces the infectivity of aerosolized influenza virus. A study concluded, "Maintaining indoor relative humidity >40% will significantly reduce the infectivity of aerosolized virus."<ref>{{cite journal |last1=Noti |first1=John D. |last2=Blachere |first2=Francoise M. |last3=McMillen |first3=Cynthia M. |last4=Lindsley |first4=William G. |last5=Kashon |first5=Michael L. |last6=Slaughter |first6=Denzil R. |last7=Beezhold|first7=Donald H. |year=2013 |title=High Humidity Leads to Loss of Infectious Influenza Virus from Simulated Coughs |journal=PLOS ONE |volume=8 |issue=2 |pages=e57485 |bibcode=2013PLoSO...857485N |doi=10.1371/journal.pone.0057485 |pmid=23460865|pmc=3583861 |doi-access=free }}</ref>

Excess moisture in buildings expose occupants to fungal spores, cell fragments, or [[mycotoxin]]s.<ref name="pmid21196349">{{cite journal | vauthors=Park J, Cox-Ganser JM | title=Meta-Mold exposure and respiratory health in damp indoor environments | journal=[[Frontiers in Bioscience]] | volume=3 | issue=2 | pages=757–771 | year=2011 | doi = 10.2741/e284 | pmid=21196349| doi-access=free }}</ref> Infants in homes with [[mold]] have a much greater risk of developing [[asthma]] and [[allergic rhinitis]].<ref name="pmid21196349" /> More than half of adult workers in moldy/humid buildings develop nasal or sinus symptoms due to mold exposure.<ref name="pmid21196349" />

[[Mucociliary clearance]] in the [[respiratory tract]] is also hindered by low humidity. One study in dogs found that mucus transport was lower at an absolute humidity of 9&nbsp;g/m<sup>3</sup> than at 30&nbsp;g/m<sup>3</sup>.<ref name="MRM">{{cite journal |last1=Pieterse |first1=A |last2=Hanekom |first2=SD |title=Criteria for enhancing mucus transport: a systematic scoping review. |journal=Multidisciplinary Respiratory Medicine |date=2018 |volume=13 |pages=22 |doi=10.1186/s40248-018-0127-6 |pmid=29988934|pmc=6034335 |doi-access=free }}</ref>

Increased humidity can also lead to changes in [[Body water|total body water]] that usually leads to moderate weight gain, especially if one is acclimated to working or exercising in hot and humid weather.<ref>{{cite web|title=To what degree is a person's body weight affected by the ambient temperature and humidity? Do we conserve or release water as the climate changes?|url=https://www.scientificamerican.com/article/experts-body-wieght-ambient-temperature/|access-date=2021-06-09|website=Scientific American|language=en|archive-date=2021-06-09|archive-url=https://web.archive.org/web/20210609144808/https://www.scientificamerican.com/article/experts-body-wieght-ambient-temperature/|url-status=live}}</ref>