Why do guys get tired after sex?

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Discussion Overview

The discussion revolves around the reasons why individuals may feel tired after sexual activity, exploring physiological, psychological, and evolutionary perspectives. Participants consider various factors that might contribute to this phenomenon, including emotional and physical exertion, hormonal changes, and individual differences in experiences.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that the transition between the sympathetic and parasympathetic nervous systems during and after orgasm may contribute to feelings of tiredness.
  • Another participant questions the universality of tiredness after sex, attributing it potentially to external stressors rather than the act itself.
  • Some propose that physical fitness levels or periods of inactivity may influence how tired one feels after sex, with emotional exhaustion also playing a significant role.
  • A later reply mentions that the release of endogenous opioids during orgasm may lead to relaxation, which could facilitate napping.
  • There is a suggestion that psychological factors might also be at play, referencing a Latin phrase about the emotional state following sexual activity.

Areas of Agreement / Disagreement

Participants express a range of views on the topic, with no consensus on the primary reasons for tiredness after sex. Some agree on the role of emotional and physical factors, while others challenge the notion that tiredness is a common experience.

Contextual Notes

Participants do not fully explore the physiological mechanisms involved, nor do they clarify the assumptions behind their claims. The discussion remains open-ended regarding the interplay of various factors contributing to post-coital tiredness.

Who May Find This Useful

Individuals interested in human physiology, psychology, or sexual health may find this discussion relevant.

aychamo
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Hey guys;

I'm wondering why we get tired after sex. I remember reading something in a physiology book about how when you are trying to reach orgasm (i.e., sex) either parasympathetic or sympathetic takes over, but when you have the orgasm the other one takes over.

Is the taking over of one of those why we get tired?

Is there any evolutionary reasons for this? Perhaps the sleeping allows you to devote energy into rebuilding your sperm collection, which ensures you of being ready to get more copies of your genes into the next generation. I know you would make the sperm regardless, but perhaps this helps?

I guess I want to ask this too. How comes sometimes not having sex can keep you awake?
 
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People get tired after sex? sounds very foreign to me :approve: :biggrin:

Sometimes it could be stress from work, life or family.
 
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Perhaps they are out of shape, or maybe they have been "out of commission" for a while. :wink:
I guess it would probably be a case of temporary exhaustion caused by the rush of emotion from the orgasm. Intercourse is a pretty active activity so there will be some physical drainage but I think most of it would be from the emotional aspect. You put everything into achieving the final means and then it all rushes out in a relatively quick period.
 
-- sorry for this post, i was a little inebriated bc i was waiting for my MCAT score lastnight
 
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Maybe it's psychological. Omni animale post coitum triste, said some Roman.
 
aychamo said:
-- sorry for this post, i was a little inebriated bc i was waiting for my MCAT score lastnight

So, how did you do? Where are you applying to med school?
 
Tired, or just very relaxed? Orgasm releases endogenous opioids, so to put it simply, you have a bit of a buzz going and are very relaxed, which is conducive to napping.
 
I don't think that just applies to men :-p
 
Kerrie said:
I don't think that just applies to men :-p

No, it doesn't. They just get a bad reputation for it. :biggrin:
 

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