It's the darkness... We are not designed to operate at night, and that makes us vulnerable physically AND mentally.

Melatonin production caused by a decrease in blue light from the sun tends to help us relax. It dampens nerve activity in the brain which probably keeps us feeling comfortable to open up instead of stressing or overthinking things.

Plus, there's usually no need to rush the conversation since we've either accomplished everything we needed to or relegated ourselves to putting it off until the next day. This can free up cognitive bandwidth to focus more on the conversation itself and not worrying about anything else.

It’s peaceful. You can pay attention and you’re exhausted so you’re more vulnerable. That happens to me.

I'm a different person at night. The best I can figure is because of the stillness, as an introvert I enjoy that.

I've always kinda wondered the same thing. I think maybe because at night there's just generally less stuff going on around you, and you aren't really busy doing anything else so you and your friends are just sort of left with each other and your thoughts.

A few reasons come to mind. They may not (all) apply to everyone, but deep conversations aren't strictly limited to late night either. I think these do contribute to them being more common before bed though.

- As work and family distractions decrease after hours, people spend more time on social media.
- People multitask during the day but start to relax and be more focused on a single thing after dark.
- Alcohol and drugs loosen the tongue and increase creativity. There are generally consumed more in the evening than in the morning or afternoon.

Good questions! Maybe because it’s the end of the day after you’ve already done all the important stuff, so you start to think about what makes it all worthwhile? Idk, just a guess.

Most people? Many are morning people and like to talk in the sunshine while hiking or over a cup of coffee!

People are relaxed after work..after dinner, best time!

Because they are tired and less busy? Idk

It's a time when we've all been drinking

People's guards might be more down.

They are rested .

Because they're tired and not thinking straight.

I tend to get more emotional late at night, I don't really know why. I'm sure there's circadian rhythm stuff going on.