No, pityriasis rosea is not contagious. You cannot get it from another person. The cause of pityriasis rosea is not fully known, but experts believe a viral infection that triggers a skin reaction ...

The psoriasis treatment that works for you initially may not continue working long term. Some benefits of trying a new treatment can include improved skin clearance, fewer side effects, and saving ...

The ability to grow long scalp hair in humans may be controlled by a molecular "switch" that was activated due to environmental and biological changes, such as bipedalism.