A deload week is a period of time in which you reduce the intensity or volume of your training or exercise routine. This allows your body to rest and recover, helping to prevent injuries and improve overall performance. Full definition
To help avoid overtraining, implement period deloading weeks into your schedule. (sixpackfactory.com)
Basically, you need to do deload weeks until you're fully recovered (unless you really dig yourself into an under - recovery, overtraining hole, in which case you may need to «deload» for months, and sometimes over a year). (bengreenfieldfitness.com)
Scheduling regular deload weeks in your training will make suer your body gets the recovery it needs. (fitnesscrest.com)