A single elevated ESR, without any symptoms of a specific disease, will usually not give enough information to make a medical decision. Furthermore, a normal result does not rule out inflammation or disease. Moderately elevated ESR occurs with inflammation but also with anemia, infection, pregnancy, and with aging.
Between 65 and 81 percent of people can curl their tongues, and slightly more women than men can do it, studies find. The notion that a person's ability to roll his or her tongue is determined by a single dominant gene stems from a paper published in 1940 by geneticist Alfred Sturtevant.
At the bottom end of the taste bud is a bundle of nerves. They carry the taste sensation towards the brain to be processed. The average human tongue has between 2000 and 8000 taste buds, but it can vary between 500 and 20,000. On average, a taste bud will survive for about seven to 10 days before it dies and is replaced. There is a huge variation from one human to the next, in how well we detect some tastes. One chemical used to test this is called PROP. Some people (called supertasters ...