A well-rounded benefits package can go a long way toward making workers happy enough to stay where they are, even when a better pay offer comes along.

The Centers for Medicare & Medicaid Services (CMS) has expanded how it defines the "primarily health-related" benefits that insurers are allowed to include in their Medicare Advantage policies.

The retail giant is said to be in talks with online startup PillPack, which pre-sorts pills into date- and time-stamped packets for patients who take multiple drugs.