Nutrition is an important aspect of one's overall health and development. Better nutrition is linked to better neonatal, child, and maternal health, stronger immune systems, safer pregnancy and childbirth, a lower risk of noncommunicable diseases (such as diabetes and cardiovascular disease), and longer life expectancy. Children who are in good health learn more effectively. The absence of sickness is only one aspect of health. It's a positive trait that emphasises physical, social, cognitive, emotional, and spiritual well-being. The cornerstone of good health and the cutting edge of prevention is optimal nutrition, which provides all nutrients in both kind and quantity. The foods we eat, and the nutrients they should offer, are the most important long-term environmental influences on our growth, development, functional capacities, and health. The nutrients in diet allow our bodies' cells to carry out their essential functions. Nutrients, in other words, provide our bodies instructions on how to function.