Anyone can suffer from insomnia, but some populations have been found to be at greater risk than others. Women are at greater risk than are men, for example, and older adults are more at risk than younger adults. There is also evidence that insomnia rates vary by race and ethnicity. People of color—and especially Black and Latino people—appear to have an elevated risk of sleep disorders, including insomnia. Though the reasons for this disparity aren’t fully understood, heightened stress, unequal access to medical care, and a greater likelihood of working night shifts or irregular schedules have been proposed as potential causes.