Are naps good for the psychological health? How?

The answer is, You need to sleep appropriately to be psychologically fresh.

yes it is useful for the psychological health, because it is renew the human day activity and a lot of research find it is better for health and bady even consentration, but it must be fron 2 pm to 4pm that is mean after 8 hour from the human wakeup in the morning 

Naps spaicially afternoon naps are good for health.

It Provides a memory boost, lower the blood presuer and help to regain your muscle energy. 

Afternoon nap is necessary for some people and it can not be dispensed with at all .. Nap useful but on conditions :* Choose the right time to take it. Try to have a nap from 1:00 to 3:00 in the morning. This period is located in the middle of the day and is relatively far from the time spent sleeping at night, so taking a nap at this time often will not adversely affect your sleep pattern at night. * Siesta should be short, experts typically recommend that the siesta should be from 10 to 30 minute. In a new study, scientists found that the best nap are only for 10 minutes longs.* You must Choose a suitable room for sleeping, the room should be: comfortable, quiet, light lighting.

The benefits of siesta:

* Reduce the daily fatigue.* Feeling relaxed.* Increase levels of alertness and concentration.* Improve mood.* Improve the ability to perform different tasks.* Improve the skills needed to solve complex problems and creative abilities.* Siesta for the elderly helps them to protect their memory and cognitive functions.

Thanks for invitation,

Following our specialzed colleagues' answers.

Not necessarily "naps" but a short time away from the daily routine as an example a brisk walk to increase circulation if possible to deep-breathe outside air, for a few minutes has been shown to improve the effects of "brain-fog" in an otherwise enclosed office environment. Similarly, taking naps may increase "brain-fog" and its hang-over effects.