Most people feel tired after sex, thanks to the various hormones that are released during sex, including oxytocin, endorphins, and dopamine (via Practo). Additionally, other factors can come into play in the bedroom that might leave you feeling wiped out, according to The Health Site. Things like stress, alcohol, and, yes, too much sex without a break can all drain your energy and leave you feeling fatigued.
The post-orgasm hormone release, and subsequent decline, could also leave you feeling a little anxious and maybe even depressed (via Healthline). Sometimes this can be attributed to a condition known as post-coital dysphoria, which can last anywhere from five minutes to up to two hours. Healthline notes that this condition has been experienced by both men and women and is fairly common. If you’re feeling anxious, tired, or depressed after a sex session (or several), you can try breathing exercises or asking yourself questions (such as “Am I safe?” or “What is happening right now?”) to help keep you grounded.