Some special abilities and environmental hazards, such as starvation and the long–term effects of freezing or scorching temperatures, can lead to a special condition called exhaustion (or fatigue). Exhaustion is measured in six levels. An effect can give a creature one or more levels of exhaustion, as specified in the effect's description.
|1||Effect: Disadvantage on Ability Checks|
|2||Effect: Speed halved|
|3||Effect: Disadvantage on Attack rolls and Saving Throws|
|4||Effect: Hit point maximum halved|
|5||Effect: Speed reduced to 0|
A creature suffers the effect of its current level of exhaustion as well as all lower levels. For example, a creature suffering level 2 exhaustion has its speed halved and has disadvantage on ability checks.
Finishing a Long Rest reduces a creature's exhaustion level by 1, provided that the creature has also ingested some food and drink.