Kazuyo Machiyama's Avatar

Kazuyo Machiyama

@kmachiyama.bsky.social

Researcher in Reproductive health and rights | fertility & infertility & ivf | demography & public health | LSHTM | East London & πŸ‡―πŸ‡΅ | views on my own

1,504 Followers  |  138 Following  |  42 Posts  |  Joined: 15.03.2024  |  1.9024

Latest posts by kmachiyama.bsky.social on Bluesky

Preview
Famine and genocide in Gaza: A personal view | LSHTM Famine and genocide in Gaza: A personal view | LSHTM

In a personal blog, Professor Francesco Checchi discusses the pressing situation in #Gaza amidst increased levels of starvation, and what this may mean for the future πŸ‘‡

www.lshtm.ac.uk/research/cen...

28.07.2025 10:56 β€” πŸ‘ 9    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0
Preview
A couple tried for 18 years to get pregnant. AI made it happen | CNN After trying to conceive for 18 years, one couple is now pregnant with their first child thanks to the power of artificial intelligence.

Great example of where AI gets all the credit but the ACTUAL contribution (in this case, sperm for fertilisation) was from the human. AI helped. It helped a lot. But without the human, AI would be impotent. Good allegory here.

edition.cnn.com/2025/07/03/h...

06.07.2025 19:44 β€” πŸ‘ 50    πŸ” 10    πŸ’¬ 3    πŸ“Œ 0

β–ͺ️ Almost 21,000 babies were born from IVF in 2023
β–ͺ️ 11% of all UK births among women aged 40-44 are as a result of IVF.
β–ͺ️ Births from donor treatment made up around 1 in 5 of all IVF and DI births in 2023, accounting for around 1 in 153 of all UK births, which is more than previous years.

26.06.2025 12:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Fertility Trends 2023
YouTube video by Human Fertilisation & Embryology Authority (HFEA) Fertility Trends 2023

1 in 32 babies now born after IVF in the UK - roughly one child in every classroom.

This year's HFEA report has more demographic perspectives:

See more findings πŸ‘‡
tinyurl.com/47bmjm8k
tinyurl.com/5cr2tnay

26.06.2025 12:00 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Equivalent of one child in every British classroom now born via IVF, data shows Proportion of women giving birth after fertility treatment up by more than a third in a decade, figures reveal

www.theguardian.com/society/2025...

26.06.2025 09:22 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
The seagulls have landed: why gulls are encroaching on Britain’s towns Avian invaders have coastal communities in Britain and beyond in a flap – but people are learning how to live with them

β€œIf it can seem at times that seagulls are taking over British towns, the fact is that their numbers aren’t rising at all – they are falling sharply. In some traditional coastal nesting sites, the most recent national seabird census found, the populations have all but collapsed”

22.06.2025 08:28 β€” πŸ‘ 13    πŸ” 6    πŸ’¬ 2    πŸ“Œ 0
Preview
Show Your Stripes Visualising how the climate has changed for every country across the globe

The temperature change in tokyo. showyourstripes.info/c/asia/japan...

20.06.2025 23:23 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Menopause in low and middle-income countries: a scoping review of knowledge, symptoms and management This study aimed to systematically map available evidence on menopause-related knowledge, symptoms and management in low and middle-income countries (LMICs) and identify critical gaps to inform res...

Menopause in low and middle-income countries:

β€œThe prevalences of vasomotor symptoms, joint pain and sexual concerns were comparable with high-income countries. However, data on the severity and burden of symptoms were scarce”

doi.org/10.1080/1369...

20.06.2025 19:18 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Preview
World fertility rates in 'unprecedented decline', UN says - BBC News Hundreds of millions of people are not able to have the number of children they want, the UN warns.

www-bbc-com.cdn.ampproject.org/c/s/www.bbc....

11.06.2025 23:01 β€” πŸ‘ 1    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

Indeed another excellent and timely piece to unpack the discourse behind it.

β€œThe lesson from abroad is clear: lasting change requires transforming the conditions that make parenthood feel untenable, not just offering token incentives.”

11.06.2025 22:51 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
The politics of pronatalism and the two-child benefit cap - British Politics and Policy at LSE Nigel Farage supports the scraping the two-child benefit cap as a way of encouraging people to have more children. But pronatalist policies that offer a one-off "baby bonus" are not effective.

Another excellent piece from a demographer, this time Stuart Gietel-Basten, on how "pronatalism is a dead end"

"Without addressing the root causes of low fertilityβ€”inequality, instability, and the incompatibility of work and family lifeβ€”top-down efforts to β€œencourage” childbearing will fail"

11.06.2025 06:41 β€” πŸ‘ 44    πŸ” 19    πŸ’¬ 0    πŸ“Œ 2
Preview
Japan records lowest number of births in more than a century, as population fears grow New government data shows the number of births reached 686,061 in 2024, a decline of 5.7% from the previous year and the lowest since statistics were first kept in 1899

www.theguardian.com/world/2025/j...

08.06.2025 21:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
Preview
Farage wants a British baby boom – but he’s missing a trick Reform UK has moved into pro-natal policies territory – but experts warn there’s no magic silver bullet

πŸ‘Ά #Farage wants a UK baby boom β€” will it work? 🍼

Our Director @melindacmills.bsky.social says: β€œThrowing money at it doesn’t work.”

Tax breaks β‰  baby boom.

Work hours, #housing, #childcare β€” it takes an ecosystem.

πŸ“Ž Telegraph article:
tinyurl.com/m6b9kbxm

#fertility #demography

02.06.2025 18:19 β€” πŸ‘ 10    πŸ” 8    πŸ’¬ 2    πŸ“Œ 1
Preview
Monday briefing: What Nigel Farage’s new obsession with nativism could mean for the UK In today’s newsletter: Reform’s latest policy shift echoes strategies seen in Europe’s far right. Will this approach gain traction in the UK?

Over the weekend, BBC Radio 4’s Any Questions programme - not typically a bastion of far-right values - included uncontested claims of how β€œlow birthrates are the biggest problem the UK faces”. Worrying how quickly this view, rejected by experts in demography, is becoming mainstream

02.06.2025 18:29 β€” πŸ‘ 14    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
Harmonising physical health measures in five national cohort studies webinar information with a photo of a little girl sitting on a sofa using an inhaler while reading a book.

Harmonising physical health measures in five national cohort studies webinar information with a photo of a little girl sitting on a sofa using an inhaler while reading a book.

🌟 Join us for our latest free webinar on Thursday, 12 June 2025. Discover new harmonised asthma and diabetes measures, find out how you could use these data to compare 5 generations, and learn about other future health data releases.

πŸ‘‰ Register here: buff.ly/1TF4P00

27.05.2025 10:25 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

Looking forward to connecting repro people this Friday! More information and free tickets fromπŸ‘‡

27.05.2025 05:45 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Seoul Expands Support for Infertility Treatments: 1 in 5 Births in Seoul Results from Infertility Procedure - As of Sep. 2024, the Seoul Metropolitan Government (SMG) sees a 61.8% increase in fertility treatment support compared to last year, with babies born through such assistance accounting for 15.8% of al...

1 in 5 Births in Seoul Results from Infertility Procedure in august 2024! The Seoul Metropolitan Govt will support 25 treatments per couple.

The relative contribution of ART and the support is highest i have ever seen. ART babies are about 10% in Japan and Denmark
world.seoul.go.kr/seoul-expand...

22.05.2025 14:25 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
UN chief calls for major reforms to cut costs and improve efficiency Amid financial strain and growing global challenges, UN Secretary-General AntΓ³nio Guterres is pushing for wide-ranging structural reforms to enhance the world body’s effectiveness.

news.un.org/en/story/202...

14.05.2025 18:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
HFEA: UK fertility regulator We are the UK's independent regulator of fertility treatment and research using human embryos.

Do you have expertise in: AI/big data OR robotics and automation in heallthcare/biological research OR Biostatistics and reviewing the quality of fertility research?

HFEA, UK national regulator of embryo research&fertility treatment, is looking to appoint one new external advisor w the expertise.

10.05.2025 05:30 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image 09.05.2025 19:08 β€” πŸ‘ 45    πŸ” 3    πŸ’¬ 3    πŸ“Œ 0
Preview
My new deadline: 20 years to give away virtually all my wealth During the first 25 years of the Gates Foundation, we gave away more than $100 billion. Over the next two decades, we will double our giving.

Die with zero.
Great news that the foundation is stepping in further. www.gatesfoundation.org/ideas/articl...

09.05.2025 20:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

us02web.zoom.us/meeting/regi...

06.05.2025 18:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
IVF versus ICSI in patients without severe male factor infertility: a randomized clinical trial - Nature Medicine Intracytoplasmic sperm injection, usually reserved for cases of male infertility, was found to be nonsuperior to conventional in vitro fertilization in couples without male infertility concerns.

β€œThese findings demonstrate that ICSI does not improve cumulative birth rates compared to conventional IVF and support conventional IVF as the preferred first-line treatment for patients with normal or nonseverely decreased sperm quality.” www.nature.com/articles/s41...

13.04.2025 13:54 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

In this article the korean professor says this. So well said.
www.washingtonpost.com/world/2025/0...

13.04.2025 10:51 β€” πŸ‘ 120    πŸ” 37    πŸ’¬ 2    πŸ“Œ 0
Preview
Governments want more babies. Are reproductive freedoms at risk? Low fertility rates have sparked panic and pronatalist initiatives around the world. But some experts are more concerned about the ethics of pushing for more births.

Yes! An entire article which challenges the β€œpopulation collapse” narrative! πŸ‘πŸ‘

β€œreproductive freedom is often treated as an obstacle to government ambitions”

www.washingtonpost.com/world/2025/0...

13.04.2025 09:36 β€” πŸ‘ 33    πŸ” 10    πŸ’¬ 2    πŸ“Œ 1

This β€οΈπŸ‘‡πŸΌ

13.04.2025 07:42 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
One in four women in England have serious reproductive health issue, survey finds Exclusive: Racial disparities highlighted as researchers estimate 10 million women have conditions such as fibroids or endometriosis

One in four women in England have serious reproductive health issue, survey finds www.theguardian.com/society/2025...

10.04.2025 21:45 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Devon woman with rare condition praises genetic testing service A genetic testing service based in Devon is praised by a woman with a rare skin condition.

www.bbc.com/news/article...

29.03.2025 21:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Tufts says international student taken into US custody, visa revoked Federal authorities have detained an international student studying at Tufts University near Boston and have revoked their visa, the university said in a statement Tuesday night.

Insane - what happen to the fulbright phd student www.reuters.com/world/us/tuf...

26.03.2025 19:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Video thumbnail

Video of the international student at Tufts being arrested by "federal authorities" in Massachusetts has been released and it's terrifying.

They're not even uniformed officers. Just secret police thugs in hoodies and masks.

From WCVB: youtu.be/PuFIs7OkzYY

26.03.2025 17:34 β€” πŸ‘ 14548    πŸ” 7572    πŸ’¬ 1164    πŸ“Œ 3102

@kmachiyama is following 20 prominent accounts