Answer:
Sleep
Explanation:
It is the state in which the consciousness is altered and is characterised by the following feature
During sleep, there are different changes that occur in the body such as decrease in blood pressure ,changes in the brain activity ,change in the breathing rate and body temperature.
The amount of sleep needed by an individual changes as the body ages , for example a baby needs more sleep than the adult ,who needs 6-8 hours per day to function properly .