What maintains the resting potential of a neuron?

Which fiber type produces the most force but fatigues quickly?

What happens when calcium binds to troponin?

What is the difference between nutrient density and energy density? Can food be both energy-dense and nutrient-rich?  Please provide an example. 

The main cause of intestinal gas formation is

Which of the following is NOT a consequence of inadequate sleep/sleep deprivation?

___________________ is defined as the average daily intake of a nutrient sufficient to meet the needs of 97-98% of healthy people.

A 42-year-old man with daytime drowsiness reports that he goes to bed around 11 pm and has no trouble falling to sleep, but frequently wakes up in the middle of the night and is not able to fall back to sleep. As a result, he does not feel rested when he gets up at 7 am. He drinks 3 cups of coffee in the morning, usually before noon. He eats a big dinner at 7 pm. About 2 hours before bedtime, he snacks on popcorn and has 3 beers. Based on this history, which of the following would be the best recommendation to improve his sleep pattern?

Which of the following sleep disorders is characterized by inadequate sleep for functional performance, is typically observed in younger adults, and is associated with longer work hours and stress?

What are the recommended physical activity guidelines for children?