Recent comments in /f/explainlikeimfive

oblivious_fireball t1_j66iy43 wrote

usually seedless plants don't evolve from seed-bearing ones very often, simply because the plant then needs to reproduce through other means like offshoots or broken off pieces rerooting without human help, and most die out faster than these methods occur or can't spread away from the parent easily. One of the only natural cases i can think of is Devil's Ivy which has a genetic defect that prevents it from producing its flowers and therefore seeds. But its a rapidly growing vine that produces a lot of rooting hormone, so it pretty readily spreads and any broken pieces easily root down into new plants.

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ISBN39393242 t1_j66ill2 wrote

>People think science is magic too often.

you can say that again.

peoples’ expectations of science and medicine are so wild. and the more uninformed, the more they expect. when you’re an actual scientist you realize it’s a mix of working banging your head against the wall for the most tiny incremental gain in knowledge (this is the vast majority of science) + the rare landmark finding, which usually gets milked for its every potential application across all fields of science.

but people really sit back and think scientists could just do whatever they wanted if they felt like it (and therefore the reason e.g. aids has no cure is because they don’t care enough, as opposed to the fact that it’s actually not possible).

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0000GKP t1_j66g9j2 wrote

>1 cop and 1 DA releasing the details, and no less than 11 other officials standing around just to give them status. Seriously, go and solve a burglary or something.

Those people aren't the ones who investigate burglaries.

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>As something who works in the private sector, if I stand around doing nothing I will get fired.

Because you are a low level nobody. Those are agency heads, elected officials, and other high ranking people that would do the firing.

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varialectio t1_j66fh13 wrote

Like other seedless things, you cross two varieties that you know will produce seedless progeny in the first generation (F1 hybrids). You obviously can't produce offspring from them so if you want to breed more plants you have to go back to the original parents each time.

You can always take cuttings and propagate your seedless variety as clones too.

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breckenridgeback t1_j66cx7p wrote

Obesity - especially abdominal obesity - is part of a broad cluster of conditions collectively known as metabolic syndrome. This syndrome includes, among other things:

  • Diabetes
  • Cardiovascular disease
  • High blood pressure
  • High cholesterol (or more properly, high LDL and low HDL, the "bad" and "good" cholesterols respectively)
  • High blood triglycerides (fats)

These things are all interrelated in complex ways.

For example, fat cells are related to insulin, in the sense that insulin stops fat cells from releasing their stored fat. Insulin, in turn, is related to high blood sugar, in that high blood sugar stimulates the release of insulin. But high insulin levels for extended periods can result in insulin resistance and hence diabetes, which causes high blood sugar to stick around and fat cells to improperly release fats into the bloodstream. Those floating fats can build up in blood vessels, causing high blood pressure and ultimately heart disease. And the poor circulation from that disease can combine with the poor circulation caused by diabetes to...

...yeah, like I said, complicated.

In part, becoming very obese is as much a symptom of underlying breakdowns in the way the body regulates energy intake as it is a cause of those breakdowns. It's all part of a bunch of feedback loops where which is cause and which is effect becomes kind of unimportant, because they're all causing and reinforcing one another.

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qqCloudqq t1_j66cuyi wrote

To explain it like you are five well there are different types of fat cells Visceral fat produces more toxic substances than subcutaneous fat, so it is more dangerous. Even in thin people, having visceral fat carries a range of health risks. It is a type of fat that wraps around your internal organs. Unfortunately being obese means you most likely have that type of fat as well.

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Anerky t1_j66bb0b wrote

Weight adds wear and tear to your joints because there is more pressure, your heart and lungs also have to work harder, there can be a buildup of fats which clog your arteries leading you to cardiovascular failure such as heart attack or stroke, possibly amputations etc. Obese people also are much less likely to fare well with many, many other health conditions and diseases in general

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