Cover. The bird from his background.

Welcome to the Yasuda Library. I hope I have built something useful for you. Similar scientific papers by other people are included in this library too. When there is a new paper for a topic, the app takes it in. If you have a question, ask Grok in the field below. Suggestions for how to make this better are very welcome.

A tour of the app

What is new is at the top. It is shown twice. Under Topics, the avatar speaks. That file is for interested laypeople. Under Library, there is no avatar. That file is for scientists: a short description, and the links to the papers. The topics are the same in both places. Similar papers by other people are included, so the same work is not done twice. When a new paper belongs to a topic, the app takes it in. The week lists his posts by day. You can ask a question in the field above. Suggestions are welcome.

Professor Yasuda's papers.

New under SARS-CoV-2, Long COVID, Iron.

Topics. With the avatar.

Post from October 4, 2026

Brain fog supplements: what helps with focus and mental clarity

The avatar

She says this is his own opinion on 4 October, and her mouth moves. Then she laughs. This is not his voice.

His picture, June 12, 2026. What appear to be the petals of a hydrangea are actually sepals.

On X

The longer iron film, if you want it.

The fact that long COVID is a cause of forgetfulness is easily forgotten for some reason.

Library. No avatar.

Short description

Brain fog can show up as trouble concentrating, forgetfulness, slower thinking, and mental tiredness. The usual causes named in the piece are poor sleep, ongoing stress, menopause and perimenopause, long COVID, low iron, and low B12 or folate. Problems with memory and concentr…

Short summary, spoken.

Yasuda Library

Hiroshi Yasuda · 保田浩志

Latest updateOctober 4, 2026 at 5:42 PMThe tour is marked on its own, with a small picture.

Two files, the same topics. Library is for scientists, no avatar. Topics is for interested laypeople, with the avatar.

Library

Post from September 29, 2026

Stroke in the young: incidence, 30-day case fatality, and risk factors over time

The avatar

Speaks the words on X. This is not his voice.

Heatstroke cases must be rising, too.

His comment

Heatstroke cases must be rising, too.

The rest

From 1993 to 2020, stroke in adults aged 20 to 54 rose from 33.90 cases per 100,000 person-years in 1993/94 to 62.18 in 2020. In older adults it fell from 618.78 to 453.04. The rise was mainly ischemic stroke, from 23.8 cases per 100,000 person-years in 1993/94 to 47.3 in 2020, almost a doubling.

What he attached

The post on XFisher et al., Neurology, September 23, 2026The attached study. Stroke in adults aged 20 to 54 rose from 1993 to 2020, mainly ischemic stroke.

Fits

Ekker et al., Neurology, May 21, 2019In the Netherlands, stroke in young adults rose 23 percent from 1998 to 2010, again through ischemic stroke.