When somebody asks about what is the next big thing, I always think on anti-aging. If you think that you don’t want to live forever, imagine that today when you arrive home you find a note saying that you will die exactly 1531[^1] days from today. How would you feel?
With that said, I would stay away from miracle drugs, because no two human beings have the same physiology. But that’s not an unsolvable problem.
[^1]: It’s a random number to “erase hope”. Not knowing when we are going to die keep us slightly hopeful and perky, our mind away from the problem.