iprocrastina

iprocrastina t1_j85t1ms wrote

Reply to What are some of the mechanisms behind why long term physical inactivity and social isolation leads to chronic health diseases? by [deleted]

Someone already answered the part about physical activity so I'll tackle social isolation.

There's multiple factors at play:

  1. Humans are social animals and require social bonds. Loneliness is meant to force you to socialize same as hunger is meant to force you to eat, thirst is meant to force you to drink water, and pain is meant to force you to tend to injuries.

  2. This evolved because in prehistoric times being shunned by your tribe was more or less a death sentence. If you didn't have anyone looking out for you it was going to be very difficult to survive. Obviously the consequences for social isolation have gotten a lot less extreme modern times, but you're still at a disadvantage. If you have someone living with you you're less likely to die from things like slipping in the shower, having a medical emergency at home, choking on food, etc. You'll also have support if you become unable to take care of yourself.

  3. Because of all this, being lonely is inherently stressful. Stress activates your fight or flight response. Chronic stress keeps that system active long term which results in chronic inflammation which results in a lot of bad health outcomes.

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iprocrastina t1_j0q6vej wrote

Reply to Social media influencers are charged with feeding followers ‘a steady diet of misinformation’ in a pump and dump stock scheme that netted $100 million by Wagamaga

Protip: If someone on social media or TV is telling you to invest in something, it's already too late to get in. Likewise, by the time any development that could affect stock price hits the news, it's already been factored in by the market.

Protip #2: No one will ever tell you about a legit opportunity because the more people who know the less money they'll make.

Protip #3: If you invest in something you know is a pump n' dump and you're not the guy running the pump n' dump, you're the sucker who's getting fleeced.

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iprocrastina t1_iy4aixu wrote

Reply to comment by NoThroWaAccount in TIL that Gresham College, an institution of higher learning in London, does not enroll students or award degrees, and instead hosts over 140 free public lectures every year. Since 2001, all lectures have been made available online. by Kurma-the-Turtle

There's no shortage of free, high quality college course content out there. Sometimes it's just video lectures, sometimes you get all the homework, tests, etc. too. EdX and Coursera are the big names, but MIT OCW has a lot of MIT course materials and lectures available for download (varies from only lecture notes to all materials depending on the course).

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iprocrastina t1_ixp2te0 wrote

Reply to comment by ACSpeed in For the first time, astronomers have observed how certain supermassive black holes launch jets (outflows of ionised matter) of high-energy particles into space by The_R3venant

IANAP but sounds like what they're saying is if anything manages to get knocked out of a black hole's orbit while traveling at relativistic speeds then that means it has to have an enormous amount of energy to fight out of that gravitational well.

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