No, it is not possible for a person to shrink while showering. The act of showering, which involves water contact and exposure to heat or warm water, does not cause a permanent or significant change in a person's height or overall body size.
However, it is worth noting that certain temporary changes can occur while showering due to factors like temperature and water absorption. When exposed to warm water, the body's tissues may expand slightly, leading to a temporary increase in size or volume. This expansion is typically minimal and does not result in a noticeable change in height or body dimensions.
After the shower, as the body cools down and dries, any temporary expansion diminishes, and the body returns to its original state. So while you may experience some minor fluctuations in size or appearance during and immediately after showering, it does not involve actual shrinking or permanent changes in height.