Much of the food you eat is absorbed by your digestive system. But some makes it all the way through those twists and turns and comes out the other end.

You may understand the respiratory and digestive systems as separate entities but, in many ways, the two are intimately connected. For example, breathing provides oxygen to help your digestive tract ...

Your personal food-processing plant is like a symphony orchestra: When all the parts perform well, the result is beautiful music that simply flows. Should one or two musicians space out or be unable ...

The human body is packed with natural rhythms, from your sleep-wake cycle to the steady pulsing of blood through the brain to ...

Scientists say the return to "standard time" is good for our health. But the time change can be disruptive and we must also ...