I honestly would like to know if they have proved there is a biological way to spot it like Alzheimers, I don't mean to sound insensitive. It just seems like in many cases "depression" is just a cluster of personality traits that haven't been disciplined. I am just trying to understand it better.

Edit: Thanks for the replies, I've enjoyed seeing the differences in which depression is viewed by different people. I will admit I did word it in a fashion that would rustle a few jimmies but that was to get replies that would directly try to dispute claims I have often heard about those who suffer from depression. I have all I need here.

Good Day!

I get why we stay on the surface, but what actually stops all the rock and material underneath us from slowly being pulled further and further toward the Earth’s core?

I'm dying to know this. It's been in the back of my mind for years

AIDS is often associated with homosexuality in popular media. Why is that? Do homosexuals have a higher risk of AIDS? Are they more infectious? Why would it be this way?

Edit: I love that this has 110 comments and zero upvotes. Also, thanks to everyone who gave a serious and useful answer!

Can someone explain why there seems to be so many allergies in the US. It seems like EVERY OTHER person is allergic to something.

For reference, I lived in China for most of my childhood years and I only came across a few people who are allergic to normal food.

People who lived in different countries, can you attest to this???

People and food labels say that contents are high in sodium, which is to say they are high in salt. As salt is NaCl, or sodium chloride, couldn’t we say that it is high in chlorine just as well? Why don’t we?

For example, House of the dragon now has a "official black" trailer, and an "official green" trailer. I have also seen movies have "red" trailers.

What do the colors signify?

I am working on my OCD and need to go to Mexico (where I've gone before! And it was fine! But my OCD was under control!)

Anyway - if the water isn't safe to drink, how is it safe to wash your hands and then use them to pick up your food? Just a matter of the dose making the poison?

Someone said it was because the soap did some magic, but then you rinse the soap off with more questionable water?

Please help me be more rational.

ETA - thanks to everyone for their helpful and encouraging responses. A little added context (if it's relevant at all) is that I've recently started an immunosuppressant and I think the shifting understanding of what's a "reasonable dose" is making me even more neurotic than usual. The comments have helped me feel more like reasonable precautions are reasonable and I'll be able to handle the trip. Thanks again!

In specific regards to the crunchy texture, what in our evolutionary diet now makes most of us view crunchy things as pleasurable?

Edited for clarity

I'm an Indian and when I watch narcos- especially narcos Mexico, most of the guys look like most of the typical dudes around here. Of course many have features that are distinctive indicators of their ethnicity but most of them could easily pass of as most people that walk around in my city lol. I'm curious do the two share common ancestry or is it a pure coincidence ?

I'm sure it's written all out, but in today's technology age, how much data and what algorithms are being processed to determine the winner/loser?

I've been pondering this for quite some time now

In my head it makes more sense to have something like a space shuttle take off from earth like a normal plane would and then just continue to climb into orbit gradually. Maybe that would use way more fuel, but like the SR71 flew at what like 70k feet or above. How much harder would it have been to get it into orbit or even out of the atmosphere completely?

The algorithm has decided all my adds should be for vagus nerve problems. Apparently it can fix everything from brain fog to world hunger.

My friend started the carnivore diet about a month ago and swears it's healthy. Her "research" is backed by 1000s of YouTube and TikTok videos. I understand the diet (as presented on the internet) but what I need explained to me is how so many people have been convinced that vegetables are bad for us?

ETA: Thanks for all the responses! I get fad diets, but I just couldn't wrap my head around this one. I appreciate all the people who pointed out that it's primarily an elimination diet and also those who pointed out the nutritional benefits of meat.

And if EV planes become a reality, how much faster can it fly?

When crossing the border from USA to Canada (and vice versa) for example; how to the immigration agents know that you’re not crossing with someone hiding inside your car’s trunk? Do they have some sort of scan to check the cars?

I have a very vague understanding of football but the one thing I don't get is what exactly a play is. In most other sports I've watched, like hockey or soccer, obviously there's some strategy, but I get the sense that the players make decisions in the moment (ex: A has the ball and passes it to B because B is open). But with plays, it seems like they make the decisions about how to pass the ball and whatnot ahead of time, and that this is secret to keep the other team from knowing about it. But how does deciding the actions ahead of time work, if you don't know what the other team is planning to do? Why is a certain play effective over a different one?

Like. Nuclear waste/disasters contaminate areas for thousands of years and cause cancer. Why is that “clean”?

I was talking to my friend who is from Germany and he said that when he visits home in the summer, the thing he misses most about the United States is having air conditioners at home on hot summer days. He said in Germany virtually no one has a in-home air conditioner. I asked why and he said most of the buildings are too old to the point where installing AC would be very difficult and would cool the house inefficiently, and I asked why they don’t just use the window AC units that you plug into the wall instead of installing a system then and he said powering one of those for just a few hours in the summer would cost as much as powering your whole house without it for a few days because of how much energy costs in Europe.

Why are energy costs so expensive in Europe? Is it because less energy is produced there compared to the US or is it because the companies are publicly owned? I’m just confused as to why it’s so much more expensive over there.