"I Can't Get Hard Or Climax During Sex"

The most common reasons, based on my experience as an escort:

Medications

Meds that relax arteries or numb emotions or nerves will interfere with erections and ejaculation. Examples are those prescribed for high blood pressure, urinary incontinence, prostate enlargement, and anti-depressants. I do think meds are overprescribed and most people don’t need them if they get therapy and a healthy diet/exercise. So you can change this.

Clogged Arteries and Damaged Blood Vessels

When a man’s arteries become blocked or constricted, due to ageing, smoking, or poor diet, he will lose sensation in his penis. The penis, which is usually pink/red in color, starts to look more whitish, especially around the glans. This reduced blood flow cannot sustain the nerves and blood flow for erection and ejaculation.

Younger men (under 40) pay note, for this could be an early indicator of a premature stroke or heart attack caused by these constricted blood vessels.

Smoking can cause ED in men as young as 20.

Pay attention to the foods you eat! Processed oils are probably your biggest culprit. There is no coming back from this problem.

Abusing Your Penis With Excessive Masturbation

Masturbation when you are aroused is natural! Masturbation when you are not aroused, merely bored and then getting erect to porn, causes a host of issues because you need to stroke tighter, harder, with more friction, and for longer, to ejaculate. I’ve seen men with scabs on their penis (a few times).

This not only desensitizes the penis, it also creates a brain pathway to orgasm with requires porn and the man’s tight grip, so he cannot ejaculate any other way!

A tight wet vagina or mouth is no match for a man’s tight grip on a dry penis.

The connection with a woman requires a man to engage, participate, tune in to another person. His spectator pose with porn stimuli requires nothing.

You can recover when you stop masturbating to porn as a habit. Masturbate only when actually horny, use your imagination, use a light grip and lube, and make sure you have sex with women and not just with porn. This problem is easily fixed.

Dr. Robert Glover, therapist specializing in helping men be powerful in relationships, and author of "No More Mr. Nice Guy”, has a blog post about this. I think he, as a man, may have more credibility than I do on what men need to do.