Why Should Children Exercise? Surprising Brain and Other Long-Term Effects

Regular physical activity in childhood substantially reduces later risks of diabetes, cancer and cardiovascular disease while improving professional success. Making healthy eating, exercise and good behaviors habits early is important for healthier adulthood. Findings from different studies are significant.

Many Diseases Begin in Childhood, and Many Risks Can Be Reduced Through Habits Acquired Then.

Many countries publish national nutrition and activity guidelines. Experts emphasize collective efforts to create a social environment supporting healthy eating and exercise. Research highlights individual choices and habits to reduce cancer risk .

Diet and Physical Activity Habits, Including Excess Weight and Obesity, Are Thought Responsible for One Third of Cancer Deaths.

Although hereditary and genetic factors affect cancer risk, most differences between individuals arise from environmental factors.

•  Familial, Hereditary and Sporadic: Frequently confused concepts in cancer

If families set good examples and establish healthy habits early, maintaining healthy weight, lifelong activity and a healthy diet can substantially reduce many disease risks, including cancer. These habits are also associated with lower cardiovascular risk.

Obesity is spreading rapidly in our country as worldwide. National data show that among those over 15, 34% are overweight and 20% have obesity, with rates rising daily.

Physical activity alone is insufficient to prevent obesity. Balanced nutrition, avoiding highly processed and junk foods and sugary carbonated drinks also matter. Maintaining these habits later is much easier than developing new ones.

• Every extra kilo steals from life – Results from 195 countries in a 25-year obesity study

Exercise's Surprising Contribution to Brain Development

Danish and Swedish scientists studying childhood activity and later achievement showed that children who exercise have substantially fewer metabolic problems . Research in 1.2 million children between 1950-1976 found that more adolescent exercise increased the tendency toward later professional success.

Neuroscientists have identified several reasons for differences in brain development among active children. Adequate activity improving childhood cardiorespiratory function is directly related to the developing brain's structure and function. Exercise particularly relates to the memory-associated hippocampus and prefrontal cortex, which develops into the 20s. The latter guides reasoning and purposeful action. Exercise increases metabolic activity and brain vessel formation (angiogenesis), building more capillary beds to deliver blood and oxygen. Synapse formation between neurons also increases, improving communication between brain regions.

The "Memory" of Early-Life Exercise

Better blood supply matters for brain cell health and is associated with lower future Alzheimer's risk. Brain MRI scans in those active as children showed more extensive vascularization and blood flow.

One striking feature is that benefits persist even after exercise stops. Early activity has a kind of "memory," maintaining benefits even in relatively inactive adulthood. Children doing tennis or gymnastics benefit for years, with major differences in bone mass, density and mineral content compared with inactive peers. Research suggests that even without adult exercise, starting before adolescence preserves positive effects for at least 10 additional years.

This reduces later susceptibility to bone diseases such as osteoporosis. Bones contribute substantially to energy metabolism, and early exercise-induced changes such as gene expression also affect pathways altering the body's response to a high-calorie diet, inflammatory response . These changes make children more resistant as adults to chronic-inflammation-related diseases such as diabetes and cancer.