The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
We have all heard before that health is wealth, and we know the importance of a nutritious diet. Still, it's easy to grab fast food to save time in our busy lives. It's vital to eat healthy foods because they help in "building muscle, sharpening your mind, or strengthening your heart" (via Eat This, Not That!) We all probably know fruits and vegetables are better for your health because they have more nutrients than a cheeseburger, but many of us tend to go the easy route.
You probably learned, way back in high school, that your period typically happens on a 28-day cycle. While there are exceptions (for instance, it's perfectly normal for your cycle to run between 21-45 days when you're a teenager and 21-35 days once you're an adult — via Verywell Health), the bottom line here is, you should expect to see your period make its appearance approximately once a month.