F.D.A. approves Alopecia drug that restores hair growth in many patients
The drug, made by Eli Lilly, is already used for rheumatoid arthritis, and could be followed by two more drugs from other companies
Kids infected with more viruses after lockdown weakened immune systems
Some children were admitted with two viruses and a few with three simultaneously
Injectable hydrogel treats back pain from damaged discs in human trials
All participants in the first human trials reported improvements to pain and mobility
