Is it true that men who watch porn more often suffer from erectile dysfunction, while women, on the contrary, do not?

Yes, that's correct. Research shows that in men, frequent porn viewing is associated with a higher risk of erectile dysfunction and reduced sexual satisfaction, whereas in women, no such association is found—in fact, they more often report better sexual functioning. Scientists explain this by noting that men tend to perceive porn as instructions, which can cause anxiety when reality does not match, while women more often use it to expand boundaries. If you notice that porn is negatively affecting your life, it's worth consulting a specialist.