Don’t swim directly after you eat. Choclate causes acne ( a disorder of the skin caused by inflammation of the skin glands and hair follicles; specifically : a form found chiefly in adolescents and marked by pimples especially on the face). Turkey makes you drowsy. Drink at least 8 classes of water every day.

Through the years, people have been given different tidbits of medical advice that assume to be “True”. Don’t believe in every thing you hear, here are some of the most common medical mythes that even doctors believe.

1. People should drink at least 8 classes of water every day.  

8 classes of water every day is not actually necessary for the body. Because the food you eat has water in it, For example, juice, milk and even caffeinated drinks like coffee and coke. It is recommended for people to drink a lot of water especially in the summer to prevent your body from dehydration.

2. We use only 10 percent of our brain.  

They idea that we use only 10 percent of our brain has been around for about a century. New studies have shown that there is no part or site of the brain is not completely active or silent, wrote the authors. “Detailed probing of the brain has failed to identify the ‘non-functioning’ 90 percent.”

3. Hair and fingernails continue to grow after death.

In order for hair and fingernails to grow require “complex hormonal regulation”, and this complex hormonal stops after the body dies.

4. Shaving your hair causes it to grow faster and even darker.  

Sun light causes hair to become lighter, so when people shave the hair it seems darker because it wasn’t exposed to sun- light like the previously shaved hair. Recent studies showed that there is no effect of shaving on the hair growth.

5. Reading in dim light damages your eyesight.

Reading in dim light actually make you feel uncomfortable and make your eye uncomfortable but it doesn’t ruin your eyesight.

6. When you eat Turkey you feel drowsy.

The myth stem from the fact that Turkey has an amount of tryptophan. Scientific evidence show that sleep and mood are effected by tryptophan. Tryptophan is also made by the human body.  Turkey doesn’t contain a lot of tryptophan, chicken and beef have almost the same amount as turkey. Pork and cheese contain more tryptophan than turkey. The myth likely stems from the fact that everyone feels drowsy after eating a large meal because the body is using energy to digest food and blood flow and oxygenation to the brain decreases. Large meals in the United States usually occur around Thanksgiving and Christmas, holidays during which turkey is often served.

7. Cellphones create considerable electromagnetic interference in hospitals.

Anecdotal reports persist that cellphones create false alarms on monitors and malfunctions in infusion pumps. After publication of a medical journal article citing more than 100 reports of suspected electromagnetic interference with medical devices before 1993, The Wall Street Journal published a front page article on the topic. As a result, many hospitals banned the use of cellphones, perpetuating the belief.

But the study authors found no evidence to support it. At the Mayo Clinic in 2005, in 510 tests performed with 16 medical devices and six mobile phones, the incidence of clinically important interference was 1.2 percent. A 2007 study that examined cellphones “used in a normal way” found no interference of any kind during 300 tests in 75 treatment rooms. In contrast, a large survey of anesthesiologists found that use of cellphones by doctors was associated with a 22 percent reduction in medical error resulting from delays in communication.