Jeehoo Jeon

Meet the Author

JEEHOO JEON

Researcher. Writer. The one who did the reading so you don’t have to.

Jeehoo is a maternal health researcher and content writer at Onzenna. She approaches every topic the same way: dig into the evidence, cut through the noise, and tell you what actually matters. Her writing is calm, informed, and built for the mom who wants the real answer — not an opinion dressed up as a fact.

Articles by

Jeehoo Jeon

4 Month Sleep Regression: Why It Happens and How to Get Through It
Sleep Guides

4 Month Sleep Regression: Why It Happens and How to Get Through It

The 4 month sleep regression marks a permanent shift in your baby's sleep architecture as their brain matures to produce adult-...

May 10, 2026
9 Month Sleep Regression Signs: What’s Happening and How to Get Through It
Sleep Guides

9 Month Sleep Regression Signs: What’s Happening and How to Get Through It

A 9 month sleep regression isn't a setback—it's your baby's brain working through major developmental leaps. Understand the s...

May 10, 2026
7 Month Old Milestones: Crawling, Development & What’s Actually Normal
Baby: 3–12 Months

7 Month Old Milestones: Crawling, Development & What’s Actually Normal

7 month old milestones got you Googling at midnight? Here's your no-panic guide to what's actually normal at month seven — cr...

May 10, 2026
18 Month Sleep Regression: Why Your Toddler Stopped Sleeping & What Actually Works
Sleep Guides

18 Month Sleep Regression: Why Your Toddler Stopped Sleeping & What Actually Works

The 18 month sleep regression toddler stage isn't a parenting failure — it's a sign your child's brain is developing rapidly ...

May 10, 2026
8 Month Old Milestones: Food, Sleep & Development (No Fluff, Just Facts)
Baby: 3–12 Months

8 Month Old Milestones: Food, Sleep & Development (No Fluff, Just Facts)

Navigating 8 month old milestones and wondering if your baby is on track? From development and feeding schedules to sleep regre...

May 10, 2026
12 Month Old Milestones: Walking, Talking & What to Actually Expect
Baby: 3–12 Months

12 Month Old Milestones: Walking, Talking & What to Actually Expect

Your baby is turning one and the 12 month old milestones era is equal parts incredible and chaotic. Here's what to actually exp...

May 10, 2026
15 Month Old Milestones: What Your Toddler Should Be Doing (and When to Worry)
Child Development

15 Month Old Milestones: What Your Toddler Should Be Doing (and When to Worry)

At 15 months, development spreads across a wide range—from walking and language to fine motor and social skills. This guide b...

May 10, 2026
Baby Teething: Signs, Timeline, and How to Help
Baby: 3–12 Months

Baby Teething: Signs, Timeline, and How to Help

The signs of teething can appear weeks before an actual tooth breaks through, including increased drooling, swollen gums, and c...

May 10, 2026
Unique Baby Girl Names for 2026: Rare, Beautiful Options Beyond the Top 100
Baby Names

Unique Baby Girl Names for 2026: Rare, Beautiful Options Beyond the Top 100

The shift toward unique baby girl names reflects a documented trend: parents are moving away from oversaturated top-10 lists to...

May 10, 2026
The Best Unisex Baby Names: Gender-Neutral Options That Actually Work
Baby Names

The Best Unisex Baby Names: Gender-Neutral Options That Actually Work

Unisex baby names are reshaping how modern parents approach naming. This guide covers timeless classics, contemporary trends, n...

May 10, 2026
Japanese Baby Names: Beautiful Names with Deep Meaning for Boys and Girls
Baby Names

Japanese Baby Names: Beautiful Names with Deep Meaning for Boys and Girls

Japanese baby names carry intentional meaning built from kanji characters, where each symbol holds its own significance. This g...

May 10, 2026
French Baby Names: Elegant Options for Boys and Girls That Stand the Test of Time
Baby Names

French Baby Names: Elegant Options for Boys and Girls That Stand the Test of Time

French baby names carry centuries of history and cross-cultural appeal, from Théodore and Marguerite to contemporary choices l...

May 10, 2026
Spanish Baby Names: Beautiful, Meaningful Options for Boys and Girls
Baby Names

Spanish Baby Names: Beautiful, Meaningful Options for Boys and Girls

Spanish baby names carry phonetic clarity, cultural depth, and centuries of meaningful history. This guide covers the most beau...

May 10, 2026
Hawaiian Baby Names: Beautiful Island Names with Deep Meaning
Baby Names

Hawaiian Baby Names: Beautiful Island Names with Deep Meaning

Hawaiian baby names carry power and meaning rooted in nature, mythology, and ancestry. Learn the most popular girl and boy name...

May 10, 2026