lstnsound writes in Why noise-cancellation isn't all its cracked up to be:

Neat, right? Well....not exactly. Unfortunately, this technology comes with its fair share of flaws. The opposing sound waves generated by active noise cancellation technology end up blocking key parts of the sound spectrum (aka your music). With key parts of your music blocked, your ears are forced to work harder to create sound. This creates ear fatigue and will leave your ears more fatigued than standard headphones

Is it true, that there are negative effects of active-noise-canceling headphones for the ears?