Lots of great stuff in the pipeline right now, including for obesity. The difficulty of progress depends on what you try to treat. Otherwise healthy people get

Lots of great stuff in the pipeline right now, including for obesity. The difficulty of progress depends on what you try to treat. Otherwise healthy people get pain and swelling. Otherwise healthy people get HIV (my dad is on the patent for one of the world's best-selling HIV drugs). If you concentrate research on afflictions of the dying, progress is harder.