Recent comments in /f/science

Conscious_Egg_6233 t1_jb5zs45 wrote

Actually you do. Major depression causes your lymphocytes to increase with relation to platelets. Meaning that you're more susceptible to cardiac events and general illness with major depression. The fact that major depression occurs in cancer patients could point to a host of issues. I would expect to see link between cancer spread and major depression.

This is opposed to less severe forms of depression that do not affect your lymphocytes and platelet ratio.

So yes. We do need scientists to figure this out.

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Conscious_Egg_6233 t1_jb5z3mu wrote

>We know that depression is linked to exercise, sleep and diet. The actual mechanisms aren't clear but it could be due to BDNF, increased microcondrial health, brain volume, blood flow, anti-inflammatory, etc.

So it might be that depression is just correlated to poor survival rates, where the actual causal factors are sleep, diet and exercise.

This is false. Depression is linked to exercise, sleep, and diet but they are don't cause major depreesion. You can have great sleep, diet, and exercise habits and still develop major depression which increases your inflammatory markers. I actually had a case of major depression that popped up and my inflammatory markers were high even though I was in excellent shape. Major depression can increase inflammation regardless of your habits. Lesser forms of depression can get better with or even treated with working out and better sleep but not major depression.

>“Depression should not be discounted. This study shows the strong link between depression and inflammation, with both related to poor outcomes

https://news.osu.edu/depression-linked-to-deadly-inflammation-in-lung-cancer-patients/

Which lines up with the fact exercise, sleep and diet all act as anti-inflammatory.

platelet-to-lymphocyte ratio is one of the biomarkers for inflammation. Exercise, sleep, and diet don't affect that ratio. Only major depression does. Your assumptions are wrong here.

>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1470658/#i1523-5998-8-2-106-b3

We have studies showing that exercise is just as if not more effective as medicine and therapy in treating depression

It doesn't mention the type of depression and it only REDUCES not completely treats major depression. It has to be completed treated not just reduced to a lesser degree of depression. Meds are necessary for treatment. Like wise you post a bunch of stuff and are too illeterate to know that it shows that exercise is good but isn't a cure all. Meds are needed in many cases especially for major depression due to chemotherapy. You sound like you're playing doctor. right now.

>University of South Australia researchers are calling for exercise to be a mainstay approach for managing depression

Manages. Not cures or treats.

>In conclusion, PA is effective for improving depression and anxiety across a very wide range of populations.

Improves depression and anxiety, does not cure or treat.

>Sleep, exercise and depression are all linked to brain volume

Linked doesn't mean anything. Poverty is also linked to lack of sleep, depression, and exercise. I'm surprised you haven't pushed hustle culture BS here too.

>Exercise has massive effects on mitochondria, which might be partly a mechanism in relation to depression.

Linked just means it appears in relation to. We don't know the cause or what the true fix is. But the best medical practices is talk therapy alongside medication as needed.

>Sleep is really important, if you aren't sleeping properly you have have a tenfold higher risk of depression,

People with insomnia , for example, may have a tenfold higher risk of developing depression From

The fact you conflate proper sleep with insomnia is stupid. You can't "proper sleep habits" your way out of clinically diagnosed insomnia. It doesn't mean "goes to bed late".

The fact that you would post stuff that doesn't prove your point and yet be too illiterate to understand what you are reading is wild

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Notspherry t1_jb5ympq wrote

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Notspherry t1_jb5y33r wrote

There are a lot of assumptions here that I do not agree with.

Full disclosure: I live on the outskirts of a 70k town in the netherlands. Definitely not in a big city.

First, giving people the option to ride for transportation does not equate forcing people to ride. If your local steakhouse adds burgers to the menu they are not forcing you to only eat burgers.

Second, dropping off my kids at daycare/school has never been more than a 10 minute detour. The way towns are set up here means that most daily destinations like schools, shops, doctors and sports facilities are always close to residential area's. This means chaining several trips together by bike is very easy.

Third: cars coststake up a large part of the budget of young families. Cutting (a part) of these costs means being able to afford a better house, or working less. I see lots of mothers who cycle everywhere, with or without kids, because it is the most convenient way to get around.

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Plant__Eater OP t1_jb5xlot wrote

Abstract:

>Food consumption is a major source of greenhouse gas (GHG) emissions, and evaluating its future warming impact is crucial for guiding climate mitigation action. However, the lack of granularity in reporting food item emissions and the widespread use of oversimplified metrics such as CO2 equivalents have complicated interpretation. We resolve these challenges by developing a global food consumption GHG emissions inventory separated by individual gas species and employing a reduced-complexity climate model, evaluating the associated future warming contribution and potential benefits from certain mitigation measures. We find that global food consumption alone could add nearly 1 °C to warming by 2100. Seventy five percent of this warming is driven by foods that are high sources of methane (ruminant meat, dairy and rice). However, over 55% of anticipated warming can be avoided from simultaneous improvements to production practices, the universal adoption of a healthy diet and consumer- and retail-level food waste reductions.

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ssnover95x t1_jb5xlnd wrote

I think the best way to solve that is to start to require additional licensing and taxes to vehicles above a certain weight. Vehicles have gotten heavier to improve the safety of their occupants, but it makes all other road users less safe.

I'm not sure that vehicle type is a particularly big driver of congestion though. Their footprint compared to an SUV is not that different and SUVs are popular for ride share.

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citybuildr t1_jb5wyxa wrote

>Businesses have parking based on how busy they are,

Not really, no. Businesses are required to have minimum numbers of parking spots based on the square footage of the business, and a ratio determined by business type. A big box store in Tulsa needs at least 2.5 parking spots per 1,000 square feet of retail space source. That's about 500 square feet for the parking space and the adjacent aisle space, for every 1,000 feet of retail space.

In many cities, even a bar needs a parking space for every 100 square feet of interior space. A standard parking spot is bigger than that. And that's a bar, a place where people are expected to drink and therefore probably shouldn't be driving, and yet more space is devoted to parking than to the bar itself. Parking minimums are a huge waste of space.

In that first link, you'll find an analysis of parking spaces at a mall in Black Friday, the busiest shopping day of the year. Less than half the spots are used. So the parking lot could be half the size and still do its job. But because of parking minimums, we require that space to be wasted (and worse, covered in impermeable asphalt and prevents drainage and contributes to the urban heat island).

>Try about 2.5x for older cities) geographically constrained ones.

This is probably more accurate for older cities, I agree. Especially as older cities also tend to not have parking minimums for most of the dense parts, and most of these cities are more walkable and have better transit, so cars aren't required. And yet, that's still a lot of space. If every parking spot is 16'x8' (standard for a lot but on-street parking is usually about 13x6), that's 320 square feet for each car. The average person lives in about 450 square feet of space. Our cars need almost as much space as we do, that's absurd.

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