Cold exposure refers to the deliberate act of placing oneself in a cold environment with the intention of deriving certain benefits. This could involve activities like taking cold showers, ice baths, or any other type of exposure to cold temperatures. The key word here is "deliberate", meaning you are consciously choosing to expose yourself to the cold. This is different from being in a cold environment against your will or without your control. The effects of cold exposure can vary depending on the individual's mindset and the specific goals they have in mind, such as enhancing mental or physical performance, or improving metabolism.