One 25-year-old man will now have to invest in some hair products thanks to his newly grown crop on top.
According to CBS.com, the man suffers from alopecia universalis, which is a disease that causes loss of hair all over the body. He started to grow hair while participating in a Yale study on an FDA-approved arthritis drug, tofacitinib citrate, which has also been used to treat psoriasis.
The man was in the trial for eight months and did not report any noticeable side effects from the medication scientists say.
Experts say the man has now grown hair in other places on his body including eyebrows, eyelashes and facial hair.
To read more about this discovery, click here.
