Optical illusions are caused by a mismatch of what the eyes see and what the brain interprets, according to ABC News. The brain is often tricked into thinking something is moving when contrasting colors are placed in close proximity to each other and repeated. This is why when people want a pattern to move like an optical illusion, the shapes of the pattern are outlined in black and white.Continue Reading
Optical illusions, however, are not always caused by repeating patterns. One example of this is when people see stars when they hit their heat really hard. People know they are not actually seeing stars, but the hard blow to the head causes neurons in the eyes to become visible for a short period of time. These neurons are misinterpreted by the brain as being light, so they closely resemble stars that people see in the night sky.
The term optical illusion is not the best way to describe this phenomenon, according to ABC News. It is best to call them visual illusions, because the illusion is caused by more than just the eyes. It is caused by the primary visual cortex, which is the area of the brain that helps to process visual information.Learn more about Optics & Waves
To rid the body of nasal drainage and excess mucus quickly, rinse out the nose with a saltwater solution, also known as nasal irrigation, twice each day, according to ABC News. A combination of medical treatments and home remedies also provide cures for sinus drainage stemming from acute or chronic sinusitis, explains WebMD. Treatments for bacterial infections causing sinus drainage include antibiotics and over-the-counter decongestants to eliminate the infection and reduce mucus from developing in the sinuses.Full Answer >
Most Americans can sign up for health insurance through exchanges set up by the Affordable Care Act, commonly called ObamaCare, according to ABC News. To determine if you qualify for tax credits, look at how much income you make compared to the Federal Poverty Level.Full Answer >
Common causes of easy bruising include aging, blood-thinning medications, vitamin C deficiency, excess sun exposure and purpuric dermatosis, according to ABC News. People with fair skin may also experience easy bruising.Full Answer >
A good Myron Mixon recipe uses baby back ribs with a rub, marinade, spritz and hog glaze, according to ABC News. This recipe takes more than two hours to cook.Full Answer >