Miguel has difficulty achieving erection. To determine if his dysfunction is physical or psychological, his physician will probably suggest

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Sleep studies to look at nocturnal erections are commonly used to determine if a man's erectile dysfunction is due to physical causes (such as low testosterone) or psychological causes (such as anxiety or depression). Nocturnal erections, which occur during REM sleep, are typically not affected by psychological factors, so if a man's erectile dysfunction is still present during nocturnal erections, it is more likely to be due to physical causes.

Miguel Has Difficulty Achieving Erection