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.While you are subjected to the Exhausted Condition, you experience the following effects:

• Levels of Exhaustion. 
  • This condition is cumulative. Each time you receive it, you gain 1 level of exhaustion. You die if your exhaustion level exceeds 10.
• D20 rolls affected. 
  • When you make an attack roll, ability check, or saving throw, you subtract your exhaustion level from the d20 roll.
• Spell save DCs affected. 
  • Subtract your exhaustion level from the Spell save DC of any Spell you cast.

• Ending the Condition. 
  • Finishing a Field Rest removes 1 of your levels of exhaustion, provided you received no levels of exhaustion during the Field Rest. Finishing a Long Rest immediately removes all remaining levels of exhaustion, also provided you received no levels of exhaustion during the Long Rest. When your exhaustion level reaches 0, you are no longer Exhausted.

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.

Level	Effect
1	Disadvantage on ability checks
2	Speed halved
3	Disadvantage on attack rolls and saving throws
4	Hit point maximum halved
5	Speed reduced to 0
6	Death

If an already exhausted creature suffers another effect that causes exhaustion, its current level of exhaustion increases by the amount specified in the effect’s description.

If an already exhausted creature suffers another effect that causes exhaustion, its current level of exhaustion increases by the amount specified in the effect’s description.

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.

An effect that removes exhaustion reduces its level as specified in the effect’s description, with all exhaustion effects ending if a creature’s exhaustion level is reduced below 1.

Finishing a long rest also reduces a creature’s exhaustion level by 1, provided that the creature has also ingested some food and drink. Also, being raised from the dead reduces a creature’s exhaustion level by 1.