Development has brought numerous benefits to human society like high birth mortality, high life expectancy etc. At the same time, there are many new challenges which have cropped up as a side effect of the development.
Nowadays, humans' lifespan has significantly improved than before. This has made two major problems to people and communities, and I think two important solutions should be implemented to tackle them.
Our ancestors didn't live more than 50-60 years. In the last centuries the life expectancy had been about 50-55 years and now it is 60-70 years in developed countries.