Smoking Around Kids? You Could Be Impacting Your Child’s Growth, Warns WHO

Second-hand smoke is more harmful than many believe. WHO’s recent report shows how exposure before and after birth can stunt children’s growth. Read ahead to know how one can prevent it.
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Smoking Around Kids? You Could Be Impacting Your Child’s Growth, Warns WHO


Many parents think smoking in or around the home mostly affects breathing or causes coughs. But new research by the World Health Organization (WHO) shows that smoking harms children in deeper and more lasting ways than many realise. If a mother smokes, or if kids breathe in secondhand smoke after they are born, it can stunt their growth. This isn’t just about shortness; it can affect health, development, and even chances in life.

What the WHO Study Says in Simple Words1 - 2025-09-16T135109.617

WHO has released a new report that links tobacco use to child stunting, a condition where children are much shorter than what is normal for their age. 

Here are its main points:

  • Globally, nearly 150 million children are affected by stunting. Most of these children live in parts of Asia and Africa. 
  • If the mother smokes during pregnancy, risks go up: early birth, low birth weight, and restricted growth inside the womb. These are strong predictors of stunting by age two. 
  • The more a child is exposed before and after birth, the greater the risk. Maternal heavy smoking shows stronger effects. 
  • After birth, second-hand smoke exposure adds to respiratory infections and other health issues that interfere with growth. 

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Why Tobacco Smoke Hurts Children’s Growth2 - 2025-09-16T135104.676

To see how smoking results in these problems, let us first know how smoking leads to problems:

  • Thousands of toxic chemicals are contained in tobacco smoke. These are some of them that are transmitted through the placenta to the baby. Others destroy the young lungs and impair the body's capacity to absorb nutrients.
  • Infants who are born either prematurely or too small miss vital stages of development. It is difficult to catch up even after that.
  • Children who get respiratory infections or other diseases caused by smoke expend more energy struggling with sickness. They can consume less, sleep less and be deprived of growth potential.

Preventive Measures: Keeping Children Safe and Growing Well3 - 2025-09-16T135107.493

Luckily, there are numerous measures which can prevent risk. Here are the key steps:

  • Non-smoking during pregnancy. Smoking is not encouraged. Premature withdrawal results in improved development of the baby.
  • Reduce exposure of kids to second-hand smoke. It implies avoiding the indoor areas with smoke and not smoking in the presence of children, at home and in cars.
  • Promotion of smoking cessation among in-home smokers. Social support assistance, counselling and smoking-cessation services. WHO encourages pregnant mothers to seek assistance in quitting.
  • Raise awareness. Parents and caretakers do not always notice that smoking is not just an annoyance, but it can influence the future development and health of a child.

Why This Study Matters

This WHO report is a strong reminder that smoking’s effects are not limited to lung irritation or temporary sickness. They are able to influence the physical, mental, and developmental path of a child. The retarded growth not only relates to the height of a child, but also affects immunity, performance at school, the ability to work in adulthood, and well-being.

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Conclusion

The WHO’s recent evidence makes it clear that tobacco exposure before birth and during childhood does much more damage than is often acknowledged. Protecting children from smoke is critical for their physical growth, health, and life chances. By quitting smoking, keeping homes smoke-free, and enforcing public policies, we can help future generations grow stronger, healthier, and more resilient.

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