What are outside factors (outside of our body/mind) that can affect our sleep

Should basketball replace baseball as americans national pastime?

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

Which describes the effect of prolonged stress on blood pressure? it causes blood pressure to decrease. it has little or no effect on blood pressure. it causes the heart to pump with more force. it causes blood pressure to increase.