I have a Kingston SSDNow V+ 64GB SSD, and I understand how writing/erasing of the NAND wears out the flash.
This is because writing/erasing the NAND damages the oxide layer surrounding the floating gate, which over time leads to electron trap-up, where electrons get trapped in the oxide layer itself. This causes the difference between 0 and 1 states of the cell to slowly disappear. Dealing with this slows performance. Reference
This can be "reset" by applying larger voltage in the opposite direction of the cells to remove the electrons that block the cells.
Is there any software method that I could use to make the SSD apply the voltage to the NAND?