Lower back pain is very common and can be due to a variety of causes. One of them isn’t usually the first suspected cause, but it occurs more often than you might think: a tight piriformis muscle. This small, thin muscle is located behind the gluteus maximus and connects the spine to the top of ... Read more
Optical illusions may seem like a fun activity, but in reality, they are more than just visual tricks . Why, you may wonder. Well, because they can also reveal a lot about how we think, feel, and interpret the world. The image below is an optical illusion that can tell a lot about your current ... Read more
Many people look at a clenched fist and see only a simple hand movement, but there is a specific version that carries a deep history. When the thumb is tucked tightly between the first two fingers, it creates a sign known in many different cultures as making a fig. Long before we had the convenience ... Read more