Eyes are organs of the visual system. They provide animals with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and convert it into electro-chemical impulses in neurons. In higher organisms, the eye is a complex optical system which collects light from the surrounding environment, regulates its intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through complex neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain.
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.
