If you could invent any type of cure to help the most of people, which one would it be?

Question: If you could invent any type of cure to help the most of people, which one would it be?
- Keywords:
  cure,
  invent,
  people,
  type
Asked by Noraa to Ben, Lizzie, Francis, Max, Sian on 13 Mar 2018.
- Ben Mulhearn answered on 13 Mar 2018:
  
  I would try and cure autoimmune diseases, because they can affect many different type of the body. Some common ones include type 1 diabetes, thyroid disease, multiple sclerosis, and rheumatoid arthritis.

Question: If you could invent any type of cure to help the most of people, which one would it be?