112 citations
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January 2004 in “The International journal of developmental biology” Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.
12 citations
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January 1981 in “Springer eBooks” Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.
277 citations
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July 2011 in “Journal of the Dermatology Nurses’ Association” The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.
1 citations
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April 2016 in “CRC Press eBooks” Skin aging reflects overall body aging and can indicate internal health conditions.
5 citations
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January 2012 in “Psychology” Depression may be linked to changes in body electrolytes and muscle inactivity, similar to effects of weightlessness.