According to an article in the journal Science, the opah is a rarity: A warm-blooded fish that can swim fast by flapping its fins like water wings as it speeds through the water. The movement speeds the opah's metabolism and heats its blood, leading to better reaction times, according to researchers.
A. Rhinitis is an inflammation of the tissues inside the nose. It causes sneezing, runny nose and stuffy nose. It is often accompanied by conjunctivitis (itchy, watery eyes). Most often it is caused by an allergy or an infection.
Causes of nasal congestion. Congestion is when your nose becomes stuffed up and inflamed. Minor illnesses are the most common causes of nasal congestion. For instance, a cold, the flu, and sinus infections can all cause stuffy noses. Illness-related congestion usually improves within one week. Congestion that lasts longer than one week is often a symptom of an underlying health issue.