The main focus size change in size. But can include shrinking or body part size change.
In this, people experience growth.
It could affect the person themselves, or the people around them. They could have control over the growth or no control over it.
They could be famous, rich people. An average person or even a poor homeless person. They could be a little kid to a full grown adult.
People anywhere in the universe can be affected. They can be living normally and out of the blue they just start growing.
Slow or fast, as tall as a street lamp to as big as a planet.
The cause of the growth can range. Someone could have gotten their hands on a size ray. Or some growth pills.
Or someone receives the power to grow people or themselves. Magic or even using a website.