NArayaneem is a Sanskrit text written by Melpathoor Narayana Bhatathiri.
It was written as an offering to Lord Vishnu after sitting in Bhajan at His feet at a place called Guruvayoor in South India. (in Central Kerala).
The reason for the offering was to cure him of his disease, which he had taken over from his Guru who was suffering from "vaatha " thru a process called "karmavipaaka daana", which no one could cure
It consists of 100 chapters with 1036 slokas. Most of the chapters end with the prayer "please cure me of my disease".. Immediately after he finished the NArayaneeyam he was cured of his illness. . .There fore it is believed that chanting the NArayannem is good for curing diseases
However NArayneemis much more than that. It is s the essence of the Sree Maha Bhagvatham.
Sree Maha Bhagvatham consists of 18,000 slokas and is the essence of the four Vedas . To establish the trio of Bhakti, jnana and vairagya :