Some people hallucinate smells. In the first study of its kind, researchers show that phantom odor perception is more common than once thought.
People with synesthesia experience unique perceptual cross-overs, such as associating letters or sounds to colors. Learn more about it in this Spotlight.
Rosy cheeks can be the result of many benign causes, such as being hot. However, there are several causes that may require medical attention, including acne, rosacea, and lupus. We look at some of the causes of facial flushing and explain the steps that people can take to treat, manage, and prevent them.