Indexed universal life is one of the insurance industry's hottest products, but regulators worry insurers are underplaying the dangers of a product tied to the performance of the U.S. stock market.

After a mixed year for retailers, expect the sector to get even more competitive in 2020 as the industry faces major shifts in technology, shopping habits and demographics.

Whether you're retired or still working, many changes are coming that could affect you—for better and/or worse. Here's our breakdown of what you need to know in 2020.