Some pyschologists suggests that too many choices can negatively impact our health. But a meta-analysis of 50 published and unpublished experiments that investigated choice overload  found that consumers generally respond positively to having many choices.

Across the 50 experiments, which depict the choices of 5,036 individual participants, the authors found that the overall effect of choice overload was virtually zero. "This suggests that adverse consequences do not necessarily follow from increases in the number of options," the authors write. "In fact, contrary to the notion of choice overload, these results suggest that having many options to choose from will, on average, not lead to a decrease in satisfaction or motivation to make a choice."
Introduction
The most common form of  brain tumor in adults, glioblastoma multiforme (GBM), is not in fact a single disease but appears to be four distinct molecular subtypes, according to a study by The Cancer Genome Atlas (TCGA) Research Network. The researchers in this study also found
Join The Navy : See A Nuke

There was a time when a navy, merchant or military,  consisted of hundreds of ships, each manned by hundreds of crew.  When I was a child in the 1950s, Sheerness was a thriving dockyard town.  Everyone in town knew at least one soldier or sailor, either as a relative or as a friend.