The things which block hormones needed for growth have also been revealed.
It's claimed love, hope and happiness - as well as diet and exercise - can help a child become taller.
A human development expert says "toxic emotional stress", such as not feeling loved, can harm the body and block hormones needed for growth.
Professor Barry Bogin from Loughborough University in England, says people living in Guatemala, who've been exposed to prolonged violence and political turmoil, are among the shortest in the world.
Rose Of Tralee To Lead Midlands Pride Parade
Lovely Laois Homecoming To Celebrate Local Icons And Four Unsung Heroes
The Traitors Ireland Returns
PHOTOS: Electric Picnic 2026
Picnic Goers Asked To Return Home Safely
Midlands LGBT Project Lots Of Conversations Still Need To Happen
Sun Shines At Electric Picnic
Folk Collective Group Bring First Tour To Midlands
Festival-Goers Warned About The Dangers Of Next-Day Drink-Driving After Electric Picnic
Electric Picnic Gates Open For 80,000 Festival-Goers
Westmeath Activist Shortlisted For National GALA Person Of The Year Award
Gardaí Warn Of Heavy Traffic In Laois As Electric Picnic Gets Underway
Maura Higgins To Host ‘Blind Date’ Reboot For Disney+
Dolly Parton Remembered As ‘Giant Of An Artist’ Following Death At 80
Excitement Building Ahead Of Electric Picnic Opening Day
Midlands 103 Gets Three IMRO Radio Awards Nominations
Electric Picnic Weekend Set For Mixed Weather
"Points Do Not Define You" - Midlands Woman Shares Education Journey
Photos: Black Bull Threshing Fest 2026