Recent comments in /f/science

ElvisDumbledore t1_j6xglov wrote

Reply to Transplanted Human Brain Cells Respond to Visual Stimuli in Rat Brains – Study finds human-derived brain organoids can integrate into the visual cortex of rat brains. After three months, the organoids demonstrate electrical responses to visual stimuli. by swhelan_tn

Thank god. I've been unable to navigate mazes my whole life. Perhaps in the future they will be able to transplant that part of a rat's brain into mine.

Fall Festival Corn Maize here I come!!!

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Reply to Transplanted Human Brain Cells Respond to Visual Stimuli in Rat Brains – Study finds human-derived brain organoids can integrate into the visual cortex of rat brains. After three months, the organoids demonstrate electrical responses to visual stimuli. by swhelan_tn

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ashoka_akira t1_j6xb9ym wrote

Reply to comment by SassiesSoiledPanties in Trees could reduce mortality from urban heat waves by a third by YoanB

The problem with a plant like that is the line between helpful plant and invasive species would be very thin depending on where it landed. in my part of the world we have issues with palm trees choking out native species because they grow so fast.

There almost needs to be a different plant solution for each different geographical area using plants that are indigenous to the area

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Technical_Sir_9588 t1_j6xa0m7 wrote

Reply to Study shows that regular coffee drinking (2 to 3 cups per day) is associated with lower systolic blood pressure (SBP), peripheral pulse pressure (PP), aortic BP and aortic PP, but with similar arterial stiffness by giuliomagnifico

I used to be jittery when drinking coffee but my body has acclimated to it over the years so it's not much of an issue unless I'm taking a second cup soon after the first. L-Theanine was helpful to get the benefits of the caffeine without the jitters.

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"Caffeine was found to mainly improve performance on demanding long-duration cognitive tasks and self-reported alertness, arousal, and vigor. Significant effects already occurred at low doses of 40 mg. L-theanine alone improved self-reported relaxation, tension, and calmness starting at 200 mg. L-theanine and caffeine combined were found to particularly improve performance in attention-switching tasks and alertness, but to a lesser extent than caffeine alone. No conclusive evidence relating to effects induced by EGCG could be given since the amount of intervention studies was limited. These studies provided reliable evidence showing that L-theanine and caffeine have clear beneficial effects on sustained attention, memory, and suppression of distraction. Moreover, L-theanine was found to lead to relaxation by reducing caffeine induced arousal."

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iwouldhugwonderwoman t1_j6x9kb0 wrote

Reply to comment by sebirds in Study shows that regular coffee drinking (2 to 3 cups per day) is associated with lower systolic blood pressure (SBP), peripheral pulse pressure (PP), aortic BP and aortic PP, but with similar arterial stiffness by giuliomagnifico

Helps protect your liver as well.

My dad got hep c from a blood transfusion in the mid 1970s.

50 years later and no significant liver damage. Studies started coming out around 2010 or linking coffee intake and lower liver damage and sure enough my dad is a pot a day guy.

Thankfully he went through treatment and no is Hep C free.

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K_Kraz t1_j6x7cqh wrote

Reply to comment by Huntguy in US Emissions of the World’s Most Potent Greenhouse Gas Are 56 Percent Higher Than EPA Estimates. Electric utilities are likely responsible for the nation’s higher than expected emissions of sulfur hexafluoride, a greenhouse gas 25,000 times worse for the climate than carbon dioxide. by Wagamaga

Not necessarily. It is something to consider and address in conjunction with other emission reduction acts. This is also a good time to do it since the push towards EVs will require substantial expansion of the electrical grid. Currently only about 1% of the cars on the road are EV. As that number increases, so will the grid and use of SF6. So why not address that now and avoid having to rework the electrical grid later when it is a much bigger problem? Tackling just one aspect of the greenhouse gas issue is not enough. Per the EPA, vehicle emissions account for only 27% of greenhouse gasses so there are a lot of other areas to improve too.

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iShitSkittles t1_j6x2t6g wrote

Reply to comment by dustvecx in Study shows that regular coffee drinking (2 to 3 cups per day) is associated with lower systolic blood pressure (SBP), peripheral pulse pressure (PP), aortic BP and aortic PP, but with similar arterial stiffness by giuliomagnifico

That's the thing, one can get all the calcium you think you need, the problem is the kidney doesn't process it as well as it normally would, means a larger percent of that calcium you got through drinking your milk ends up exiting when you take a piss....

Less calcium processed = bigger risk of bone density problems aka osteoporosis.

That's what I took away from the article I linked to anyway.

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