http://medical-dictionary.thefreedictionary.com/alopecia+totalis Day 184 has 69 protein-coding genes (browser view) including HR (HR, lysine demethylase and nuclear receptor corepressor).
HR was formerly known as “hair growth associated,” and was named “hairless” when found in mice. Mutations cause alopecia, so the normal role must be in hair growth.
Click here to see all 8537567 letters of Day 184 with HR underlined.