In English12 posts
A chemical engineer and father of two in Nagoya, Japan, reading the parenting research at 3 a.m. and writing down what actually held up. Every post here also exists in Japanese — the JA/EN switch at the top of each one takes you across.
Your Kid Will Answer You in Japanese. It Isn't Because You Failed
I lived in the US until I was 24. My three-year-old in Nagoya still tells me to say it in Japanese — and the arithmetic says she'd need 47 years to catch up to my grade-school English. Here's why comprehension, not speech, is the honest target.
If Your Baby Cries the Second You Sit Down, Get Up and Walk
Walk and the crying stops; sit down and it starts again. It is called the transport response: walk 5 minutes, sit 5–8 more, then put them down.
It Never Said "Stop Co-Sleeping": Building a Safe Sleep Environment (A Serious One)
The guidelines never say "stop co-sleeping" — they say same room, separate sleep surface. Four things to take home, and why knowing them was not enough.
“Moisturize and They Won’t Get Allergies” Turned Out to Be Too Simple: Eczema and Food Allergies
A Cochrane review found it hard to say moisturizer alone prevents eczema in healthy babies. That is not a reason to stop caring for skin that already needs it.
The Day I Closed the Parenting Book Without a Word: For Vaccine Schedules, Trust Today's Official Sources
The schedule chart in the parenting book I bought secondhand was already out of date. Rotavirus and the 5-in-1 start at 2 months — check today's official pages.
No Honey, and Water at 70°C: Feeding a Baby Under One Has Surprisingly Few 'Absolutes'
Only two real absolutes for feeding a baby under one: no honey before age one, and formula mixed at 70°C or hotter. Read weight as a line, not a point.
Why Talk to Someone Who Can't Talk Back? The Answer From 102 Trials
102 trials across 33 countries say talking to your baby works — and the biggest change showed up on the parents' side. You respond to the signals they send.
All My 3 a.m. Searching Left Me Was Anxiety: A Reading Order for Parenting Information
An hour of searching at 3 a.m. left me nothing but anxiety. The problem was not the amount of information — it was the order I read it in. Five sources, five jobs.
How Not to Gain Weight on No Sleep: Protein, Iron, and That Marvel of Civilization, the Hot Pot
You cannot out-willpower sleep-deprived hunger. A palm-sized serving of protein at every meal, iron for my breastfeeding wife, and exactly one pot to wash.
Midnight Ice Cream and Chips Weren’t Weak Willpower: Sleep Deprivation and Weight (A Serious One)
Sleeping 1.2 hours more a day cut calorie intake by 270 kcal. Gaining weight while raising a baby is not weak willpower — it is physiology.
The Night I Didn't Hear the Baby Cry
Right beside me the baby cried, my wife got up, changed, fed and settled everyone — and I slept through every second of it. The night I heard nothing.
So I Started a Blog. (At 3 a.m.)
A dad in Nagoya, standing in a dim kitchen at 3 a.m. shaking a bottle, wondering how many others were awake too. Why this blog exists, and who it is for.
Written by にじパパ in Kita-ku, Nagoya. About this blog · 日本語のトップへ