Which of the following is a correct statement about consequences of inadequate sleep? Which of the following is a correct statement about consequences of inadequate sleep? Two-thirds of the population does not get adequate nightly sleep. Long periods of time with less than adequate sleep nightly is less harmful than brief periods of time with inadequate sleep. Getting adequate sleep has little effect on overall health. Inadequate nightly sleep can exacerbate existing health issues, as well as put one at risk for heart disease, obesity, and depression.