Tooth enamel

We've been long told that adults have only so many brain cells and that we never form new ones and that once these cells are lost, they're gone for good.

However, in recent years, experts have discovered evidence that the statement above isn't true. The human adult brain does indeed still ...

“Think of the immune system like the military, each part has a different role"

The first line of defense is the white blood cells, who are first to recognise pathogens and fight off infection. Lymphocytes, a specific type of white blood cell, work to allow the body to remember the invading ...

They are a form of second-order effects. They arise when our decisions change the context of future perception or value.

A person decides to stay an hour after work, but the person still completes the usual amount of work. Co-workers might also stay an hour later. Now the same job takes ...