Nofap is the practice of intentionally abstaining from masturbation and porn for a longer period of time. In modern society, porn is accessible like never before. There are hundreds of genres, fetishes and other non-natural categories. Each time porn is viewed, a rush of dopamine rewards the brain which will lead to addiction and its effect on the brain is similar to some drugs. This rush of dopamine causes the dopamine receptors to get blocked in the brain, leading to a tolerance. This tolerance will have negative health effects mentally and physically depending on how strong the addiction has delevoped. Porn rewires the brain, leading to even more health problems.
The tolerance to dopamine absorption that porn addiction has created in affected people, will lead to a general loss of motivation in daily life. When sleep deprived during an adaptation, motivation is needed to not oversleep, therefore a porn addiction can cause more difficulties during an adaptation and reduce the chance to adapt to a schedule.
An addiction to porn can lead to depression and therefore also causing sleep difficulties and sleep disorders such as insomnia, making an adaptation to schedules more difficult.
Due to a loss of motivation caused by porn, discipline reduces and therefore can also cause difficulties staying consistant on a schedule.
Porn cravings can possibly destroy an adaptation because affected people don't have control over their actions and can't resist watching porn in a moment where the person should actually sleep, do a dark period or other routines and activities that promotes his sleep.