The good news is that brain cancer affects less than 1 percent of the world’s population; the bad news is that brain tumors are often accompanied by very few symptoms, and these symptoms disguise themselves as everyday ailments such as headaches and exhaustion. Read on for seven silent, but serious, brain cancer symptoms, and how you should know whether to see a doctor.

8 Strange Side Effects of Common Drugs
You will be surprised to read what your medicine cabinet hides, because you probably have at least four drugs that are on this list. Many common drugs have side effects,