Featured Research

from universities, journals, and other organizations

Smaller Babies More Prone To Depression, Anxiety Later On

Date:
December 5, 2007
Source:
University of Alberta
Summary:
Turns out there might be some truth to the popular wisdom that plump babies are happy babies. A landmark public health study has found that people who had a low birth weight are more likely to experience depression and anxiety later in life.

Turns out there might be some truth to the popular wisdom that plump babies are happy babies. A landmark public health study has found that people who had a low birth weight are more likely to experience depression and anxiety later in life.

"We found that even people who had just mild or moderate symptoms of depression or anxiety over their life course were smaller babies than those who had better mental health," said lead author Ian Colman of the University of Alberta's School of Public Health. "It suggests a dose-response relationship. As birth weight progressively decreases, it's more likely that an individual will suffer from mood disorders later in life."

The study analyzes information drawn from the Medical Research Council National Survey of Health and Development, one of the longest-running cohort studies in the world. The survey tracked more than 4,600 people born in Great Britain in 1946 for symptoms of anxiety and depression over a 40-year period.

The results represent an important chapter in the "nature versus nurture" debate, supporting the theory that conditions in the womb do indeed have an effect on our future development.

The connection between birth weight and mental health isn't the only fascinating find made by Colman and colleagues at the University of Cambridge and University College London in England. "One of the surprising findings from our research was that people who had worse mental health throughout their lives had also reached developmental milestones--like standing and walking for the first time--later in life than those who had better mental health," said Colman.

The researchers emphasize they are not saying all small babies will experience poor mental health in the future. They also say this study is not about babies born full-term versus babies born premature, since the data collected back in 1946 made no mention of gestational age at birth.

"Being born small isn't necessarily a problem. It is a problem if you were born small because of adverse conditions in the womb--and low birth weight is what we looked at in this study because it is considered a marker of stress in the womb. When a mother is really stressed, blood flow to the uterus is restricted and the fetus gets fewer nutrients, which tends to lead to lower birth weight," explained Colman.

At the same time, because the mother is stressed, stress hormones are passing through the placenta to the fetus and may affect the fetus's neurodevelopment and stress response. "Under these conditions, the part of the child's brain that deals with stress could be programmed incorrectly in utero--the brain doesn't develop as it would under ideal circumstances. If this theory is correct, you would find that when stressful events occur, the people who were smaller babies would be more likely to become depressed or anxious," said Colman.

Notable strengths of this study include the nationally representative sample, the sample size, and the long follow-up with the members of the 1946 cohort, whose anxious and depressive symptoms were measured at 13, 15, 36, 43 and 53 years of age.

"The idea that things that are happening in the womb might predict your health much later on in life is absolutely fascinating. And the public health implications of that are huge," said Colman. "I have been asked by many people what the 'take-home message' of this study is, and I would say that, in the simplest terms, it is 'We should take better care of pregnant women.' The kind of stress that pregnant mothers are under has a significant long-term effect on the developing fetus."

The full research article is published in the December 2007 issue of Biological Psychiatry.


Story Source:

The above story is based on materials provided by University of Alberta. Note: Materials may be edited for content and length.


Cite This Page:

University of Alberta. "Smaller Babies More Prone To Depression, Anxiety Later On." ScienceDaily. ScienceDaily, 5 December 2007. <www.sciencedaily.com/releases/2007/12/071204154710.htm>.
University of Alberta. (2007, December 5). Smaller Babies More Prone To Depression, Anxiety Later On. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2007/12/071204154710.htm
University of Alberta. "Smaller Babies More Prone To Depression, Anxiety Later On." ScienceDaily. www.sciencedaily.com/releases/2007/12/071204154710.htm (accessed July 23, 2014).

Share This




More Mind & Brain News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. Video provided by Newsy
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Do Obese Women Have 'Food Learning Impairment'?

Do Obese Women Have 'Food Learning Impairment'?

Newsy (July 18, 2014) Yale researchers tested 135 men and women, and it was only obese women who were deemed to have "impaired associative learning." Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins