Discuss the physiological factors related to the skin, hair, and nails describing variations in hair abnormalities and nail problems. 

Discuss the physiological factors related to the skin, hair, and nails describing variations in hair abnormalities and nail problems. 

Please, answer the following question in 2-3 paragraphs, the answer requires two references:  1). from peer-reviewed Nursing Journal not older than 5 years, and 2). from the following text book:
Title: Nursing Health Assessment – A Best Practice Approach.
Author(s): Jensen, S (2015)
Publisher, Edition:Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins. 2nd Ed.
ISBN 13: 978-1451192865;
APA format is required.
Discuss the physiological factors related to the skin, hair, and nails (for example: apocrine glands secrete fluid when the body undergoes exercise and emotional stress) and describe variations in hair abnormalities and nail problems.