Hi Kavita,
I am sure a lot of professionals face this problem in the offices.
Deadlines make you dead.
Archana has given some nice suggestions - Deadlines will remain, you can only create some diversions of mind
to cool the mind, and free the mind of tensions.
Colour therapy, creating a good lighting, right ambience, get some plants, aquariums,
nice comfy ergonomic chairs, cheerful atmosphere etc..can be tried.
You could also try Yoga, meditation, use some light music at the lobby / rest area, improve quality of cafeteria, put a TT Table if space permits.
Encourage people to have healthy juices & snacks instead of just Coffee and Kurkure..
All of it will work, bit by bit, bit by bit... you just have to keep at it.
All the best, and please do share your experience so that we too become wiser!!