The Holy Prophet SAW said, "Prayer is a cure for many diseases… Perform Ruku’ (bowing) and Sajda (prostration) properly.” [Source: Hadeeth in Ibn Maja & Hadeeth narrated by Anas bin Malik RA]
A person who does Sajda (Prostration), comes nearest to Allah SWT. The knowledge of that nearness, gives relief and in supplication, man gets at least a transient refuge from the worldly problems.
Sajda (Prostration) is unique because it is the only position in which the brain (or head) becomes lower than the heart and hence for the first time the blood gushes towards the brain with full force whereas in all other positions (even when lying) brain is above the heart when it has to work against gravity to send blood to the brain.
Due to the increased blood supply, the brain receives more nourishment and it has good effect upon memory, vision, hearing, concentration, psyche and all other cognitive abilities.
While going into Sajda and getting up from it, the back muscles contract actively and they become stronger, resulting in lesser incidences of backache. It is also uncommon that a man who offers his prayers regularly will get the usual neck myalgias or cervical spondylosis as the neck muscles particularly become very strong due to the 34 sajdas (Prostrations) offered daily in five prayers.
A man who offers his prayers regularly have more will power and can cope with the difficulties of life in a much better manner. He has less headaches, psychological problems and other defects of cognitive function and appears calm and in control.
The best blessing is the peace of mind, which a person derives by the accomplishment of his duty to Allah by fulfilling an obligation.
[Source courtesy of Dr. Muhammad Karim Beebani, Saudi Gazette]