The first 1,000 days of a child's life are the most important to their development - and our economic success

What’s the most important thing a child has? It’s their brain. And yet, we’re not caring for children’s brains the way we care for their bodies. This should concern all of us – including business leaders.

The first 1,000 days of life – from conception to age three – open a critical and singular window of opportunity. During this period, children’s brains can form 1,000 neural connections every second. A three-year-old’s brain is twice as active as that of an adult and the connections their brain makes are the building blocks of their future.

The science is clear about what a young brain needs to make those connections:

Stimulation, nutrition, protection from violence and pollution, all shape children’s futures – and affect the futures of countries, economies and, indeed, our common world.

Despite this, some 250 million children under five years of age in low and middle-income countries are estimated to be at risk of poor development owing to extreme poverty and stunting.

What happens to those children who have been denied these critical advantages in their earliest days? And what happens to their societies? When children miss out on this once-in-a-lifetime opportunity, we, as a global community, are perpetuating intergenerational cycles of disadvantage and inequality. Life by life, missed opportunity by missed opportunity, we are increasing the gap between the haves and the have nots.

These failures come at a great cost to all of us. A cost measured in poor learning, lower wages, higher unemployment, increased reliance on public assistance and intergenerational cycles of poverty that weigh down economic and social progress for everyone.

Working together, we – governments, international organizations, civil society, the private sector – must find ways to invest in programmes targeted at the first 1,000 days of a child’s life, focused on nutrition, stimulation, early learning and protection from violence.

Last spring, UNICEF, the World Bank and other partners launched a new alliance to focus greater attention on the importance of early childhood development and to drive greater action to reach the children at greatest risk. The Early Childhood Development Action Network is built around generating the political will, investment and local demand for early childhood development.

These are excellent opportunities for global businesses to join governments, NGOs, academics, scientists and parents and caregivers to give this issue the profile, commitment and – most importantly – the targeted investment it deserves.

It’s also an opportunity for businesses to consider how to support early childhood development programmes in their own operations – from policies that give parents more time to support their children’s development; to early childhood development facilities in their workplaces and beyond, especially in the communities in which they operate.

We cannot fail tomorrow’s citizens, tomorrow’s consumers, tomorrow’s workers, thinkers and innovators, for their abilities will drive tomorrow’s businesses. Their productivity will fuel tomorrow’s economies and their capacity to contribute will shape tomorrow’s societies.

Together, we can do more than shine a spotlight on the importance of early childhood development. We can commit to action.