Live data from Hacker News

Sperm counts worldwide are plummeting faster than we thought

nationalgeographic.com

861–870 of 1001 posts

Re: Sperm counts worldwide are plummeting faster than we thought

#861
post #478

I did my Master Degree in Organic Chemistry where we tried to develop a male contraceptive pill. I spend a lot of time studying sperm so here is a short list of thing to avoid regarding sperm quality (not ranked): 1. Eating and drinking from plastics (This includes aluminum cans which are plastic lined) [a] 2. Heating food in ANY type of plastic [a] 3. Caffein intake [b] 4. Sugar intake [c] 5. NOT exercising regularl…

Cool so my whole life

Re: Sperm counts worldwide are plummeting faster than we thought

#862

Earlier quoted context omitted.

Another lesson from your story (similar to many of my friends’) is to just have kids younger. It sounds like you started at around 35 — if people started at 30, even, fertility is higher.

Yep, I can confirm this based on personal experience with a gynecologist telling my wife that at 35 the pregnancy is considered a "geriatric pregnancy" (apparently some docs now call it "AMA"...advanced maternal age). This shocked both of us, frankly. We were aware of what the actuarial tables will tell you regarding birth defect rates related to maternal age, but hearing the term geriatric in your mid-thirties is qu…

Unfortunately this isn't a conversation a lot of people have until they're conceiving. It ought to be brought up much earlier in women's lives.

Re: Sperm counts worldwide are plummeting faster than we thought

#863
post #858

One thing that I'm genuinely curious about that I've never heard addressed is whether the large increase of people identifying as trans(trans women in particular) could be related to the same factors that are causing lowered sperm counts and testosterone in men. There are massive amounts of compounds in our environment that are endocrine disrupters or mimic sex hormones like estrogen. Like maybe many persons assumed…

No. Trans people have existed for quite a long time. It just happens that the "West" has become more accepting of them, and since it is the "West" that gets most of the media attention it's looking like a new thing with them coming out.

Maybe because we have more trans people we get more accepting and not the other way around? Just a thought, correlation is not causation and all that.

Re: Sperm counts worldwide are plummeting faster than we thought

#864
post #787

Earlier quoted context omitted.

As someone who is too lazy to do their own research on this topic....did you happen to find which products generally contain the most endocrine disruptors?

My partner and I recently embarked on a journey to replace as many products in our lives that contain endocrine disrupting chemicals (EDC's) as we could. It's _really_ hard. You have to carefully read product labels, 99.9% of products don't contain any info about EDC's, you have to specially seek out ones that are labeled as phthalate-free, BPA-free, etc. Biggest offenders are in the kitchen and bathroom. Shampoo, co…

Good grief, just trying to find products that are unscented is a nightmare. So many say "unscented" on the front, then have "parfum" or something in the ingredients.

Re: Sperm counts worldwide are plummeting faster than we thought

#865

The thesis of the book 'Countdown' is that this is largely due to widespread plastic and other endocrine disrupting chemicals. I believe this is one of the most important risks to humanity, after climate change, and global war. So far, I've taken some lifestyle changes to combat this: 1) Threw out all of my teflon cooking pans 2) Refuse to consume food in heated plastics 3) Throw out teabags (they have plastics). Use…

Some tea companies have begun switching to plastic free teabags, so do your research and check your favorite brand.

Re: Sperm counts worldwide are plummeting faster than we thought

#866

Earlier quoted context omitted.

> ever start with a hot tap for water you're gonna boil? I've been told I shouldn't do this, so I don't, but I always feel like a rube waiting for a big pot of pasta water to boil from cold when I know I could have just used my giant tank of heated water and save 10 minutes of waiting...

That's due to old-fashioned plumbing. Wayyy back in the day when water networks were fairly new they often couldn't provide the water pressure we have now, especially in hilly areas. It was fine for cold water, but not enough to pressurise a hot water tank. The solution was a header tank in the attic. This stored water from the supply and fed it down to the hot water cylinder, providing some pressure. The problem is…

Worth mentioning that hot water is also better at dissolving things than cold, which is why aquarists should avoid putting anything from the hot water tap into their aquariums. It can introduce copper which is bad for my shrimp.

Re: Sperm counts worldwide are plummeting faster than we thought

#867
post #853

Earlier quoted context omitted.

> If you have kids don't have nice stuff, it's very easy. An unexpected upshot is that in a functional household you can let them play like actual children, without the cloying anxiety and constant shrieks of "For Gods sake Tristan and Tarquin, not on the Louis Vuitton !!"

Yea, I just laugh when my friends have all this nice stuff then they start having kids. I have a modest house with basic stuff. Walls were drawn all over, I just paint them. Furniture has paint, markers, things get spilt on it. Daughter thought it was cool to use permanent marker from a drawer on hardwood floors. Didn't come off, will probably have to resurface eventually, but literally who cares. Who am I trying imp…

I would like to share that plain original Windex will take permanent marker out of many upholstery fabrics (and some carpets) if applied with a scrub brush and plenty of elbow grease, followed by a washcloth. I would try it on the floors, too, possibly also a Magic Eraser sponge.

Re: Sperm counts worldwide are plummeting faster than we thought

#868
post #541

Earlier quoted context omitted.

Problem is that a lot of people aren't in a position to have kids at 30 mainly due to economic reasons.

This common explanation never made sense. Lower income is correlated with higher fertility within the US, within every country, across the world, and (seemingly) throughout history.

Kids require more investment today in the first world. 400 years ago you just kind of taught your child your craft, your religion, and your culture and that was their education. Extremely few people went to any sort of school. Raising a child was different. Now there's a level of sensitivity and attention that's necessary to ensure emotional and developmental stability that's much greater than in the past. Kids must be educated through to at least college, sometimes even beyond. There's a globalized economy which children will be competing in, and everything that gives them an advantage makes a difference

Re: Sperm counts worldwide are plummeting faster than we thought

#869

It is interesting, I have a friend group that consists of about 5 married couples all of whom have been having issues conceiving and have been trying for a while now, but are still having issues. Curiously enough my wife and I just had our 4th and every time we've conceived within two months (even when I was hoping it would take a little longer). From what I hear our friends story is not unusual and many in our age b…

Many old people tell us about all types of fertility ceremonies etc available to us at a local shrine in order to help my partner and I get pregnant if we needed it. I don't think it's all that new to be honest, else these ceremonies wouldn't exist.

Yup, part of it is definitely that millennials have had it bashed in to them that it's super easy to get pregnant so never have sex without precautions and only stay thinking about having kids when you're "ready". Many millenials wait until they're thirty and probably think that they should be able to get pregnant in one or two months, when it can easily take half a year. At least that was my own personal experience trying to get pregnant. It became pretty stressful after trying a few cycles with no result.

Re: Sperm counts worldwide are plummeting faster than we thought

#870

The thesis of the book 'Countdown' is that this is largely due to widespread plastic and other endocrine disrupting chemicals. I believe this is one of the most important risks to humanity, after climate change, and global war. So far, I've taken some lifestyle changes to combat this: 1) Threw out all of my teflon cooking pans 2) Refuse to consume food in heated plastics 3) Throw out teabags (they have plastics). Use…

I'm fascinated by this. I think the desire to make the necessary lifestyle changes is there, but I question the practicality. I want to have my foods and beverages untouched by plastics, but how realistic is this currently? I want to buy bread that's not wrapped in plastic. Is the alternative really to make your own? Even then, can you ensure the ingredients you're sourcing for your own bread starter for example, als…

If you are lucky enough to have a local small bakery near you, then they might use paper bags (mine does), or you can take your own bag. If you only have supermarkets, you can buy things like baguettes, Italian loaves, and sourdough from the deli area inside many supermarkets, and those sometimes come in paper bags, but you have to check whether the paper bag is lined with plastic.
Post reply on HN