Live data from Hacker News

The mystery of why left-handers are so much rarer (2016)

bbc.com

271–280 of 286 posts

Re: The mystery of why left-handers are so much rarer (2016)

#271

Earlier quoted context omitted.

Nice, except the liver is on the right hand side.

The spleen is on the left though, and that is an organ that is far more vulnerable and where a rupture is lethal without surgical treatment. I still think this is bullshit, but that would be the organ to choose.

Spleen is tiny compared to liver. It's nowhere near as viable as a target. 200g vs 1.5kg.

Re: The mystery of why left-handers are so much rarer (2016)

#272

Since there seems to be a few others who use one hand or the other depending on the task at hand, here's my seemingly random list: - writing, eating, soldering iron, painting: left hand - throwing, kicking, anything that requires more strength: right hand - guitar: right - hand that holds a drink: left Here's some weird ones: - Chop an onion: right hand - Butter a piece of bread: left hand - Use a mouse: right hand.…

I had a short lived job at Taco bell as a teenager, and at Taco Bell there is a 2 sided table for assembling the food. Newbies start on the right side, experienced on the left.

The left side prioritized the drive thru, so it was more speed oriented than the right side, which prioritized the dine-in.

I had a really difficult time on the right side, being left handed. All of the assembly steps were backwards for me. The left side would have been a better fit for me.

I tried to explain this to my boss, but she made it evident to me that she wasn't being paid to care.

It was a stupid minimum wage job and I only made it 3 weeks, which was my second or third shortest lived job.

As far as "accommodations" go, I was especially equipped to work faster in their higher priority lane, but since I didn't fit into their box, it just wasn't meant to be.

Re: The mystery of why left-handers are so much rarer (2016)

#273

Earlier quoted context omitted.

Your reasoning makes no sense. Using your left hand to crack nuts vs your right hand makes no difference as far as your heart is concerned. If you are working hard enough to increase your metabolic rate, then your heart will be pumping faster in either case. Also, your theory that increased exercise leads to heart attacks is the opposite of reality!

Exercise prevents heart attacks when you have excessive calories, you get adequate sleep and do not sleep outside in the winter, you have a dry place to stand and are not out in the rain and so on. Exercise leads to muscle loss when the fat reserves are depleted and calorie intake is limited. Anyway there are ways to falsify or verify that hypothesis, but it needs some resources, not much but still, it needs time and…

If your hypothesis was true, then it'd be glaringly obvious, because there'd be a high correlation between left handedness and increased lifespan.

Re: The mystery of why left-handers are so much rarer (2016)

#274

Earlier quoted context omitted.

Nice, except the liver is on the right hand side.

Also the stomach is on the other side, so if the pointy stick wouldn't puncture the liver, it would puncture the stomach.

Stomach puncture is far more survivable than a liver tear; far far more likely to survive.

Re: The mystery of why left-handers are so much rarer (2016)

#275

There is no mystery on why left handers are rare. With the left hand shielding the liver side, the right hand becomes the weapon bearer. With the left side protexted, the deaths by liver puncture is greatly diminished. This is called survivorship bias. https://en.m.wikipedia.org/wiki/Survivorship_bias

You are using "survivorship bias" incorrectly: if it doesn't lead someone to an incorrect conclusion, then it is not survivorship bias. What you describe is a selection pressure for right-handedness.

[deleted]

Re: The mystery of why left-handers are so much rarer (2016)

#276
post #139

Just throwing in my left handed anecdote here: the bottom of my hand was always covered in pencil graphite when I was in school because your hand drags over what you've been writing from left -> right. Also ring binders were a pain in the ass (your hand is blocked at the left margin lol)

Always have blue ink on the side of my hand where I have dragged my hand across the page and through my writing. Fountain pens were particularly messy.

Re: The mystery of why left-handers are so much rarer (2016)

#277
post #99

Earlier quoted context omitted.

Im also like that..randomly mixed. I write left, but use scissors always with right. Throw and kick are right, but swing and bat is left. Computer mouse left. Taking a phone call is always left hand on left ear...but holding phone to use or text is always right hand. Self check out? Back to left hand for that mostly Lol. If a backpack is on one shoulder it feels weird if it's not on my left shoulder despite being mor…

I thought that scissors were made to be right handed, and you need a 'reversed' pair for left handed people. Or is that a scam?

To be fair I've always used scissors with the blade pointing towards me because it always felt more natural despite being told off for using it the wrong way.

Re: The mystery of why left-handers are so much rarer (2016)

#278

Earlier quoted context omitted.

Left-handed screwdrivers are not real, but left-handed scissors are real. Left-handed watches are also real, the crown is on the left side: https://www.fratellowatches.com/help-my-son-is-a-lefty-a-loo...

Wait do people wear their watch on their dominant hand? I can’t do that, need to use that hand to manipulate the watch. Maybe because it’s a smartwatch.

I’m right handed and wear a watch on my left wrist, the crown is on the right side of the watch head.

A left-handed watch has the crown on the left side of the watch head, it’s meant to be worn by a left-handed person on their right wrist.

Re: The mystery of why left-handers are so much rarer (2016)

#280
post #139

Just throwing in my left handed anecdote here: the bottom of my hand was always covered in pencil graphite when I was in school because your hand drags over what you've been writing from left -> right. Also ring binders were a pain in the ass (your hand is blocked at the left margin lol)

This was one of the reasons kids werent allowed to be left handed in the old days - you used fountain pens so it would smudge the ink

These days they make left-handed fountain pen ink. It dries much quicker to avoid smudging.
Post reply on HN