Rudraksha has positive energy and helps to each individual who wears it.
There are times when someone feels that the rudraksha beads now does not work ( may be after few weeks of wearing ).
The feelings are directly related to the power that exists with the bead.
The power of the beads are flowed to the wearer which works positively.
The wearer may feel that there is not that much high energy left with the rudraksha beads he is wearing, to make him feel it.
And to keep the beads full of energy, we must follow few rules and precaution to protect the energy.
We use rudraksha mantra or shiva panchakhari mantra to make the energy more energetic and powerful.