What are the causes of low birth weight and explain the implications for early and later life disease stat?

Placenta problems. The most common cause where I come from in smoking. Smoking prematurely ages the placenta, and it does not work as well as it should to provide nutrients to the fetus. This can lead to low birth weight, which has great effects on the early life of the child, including lower resistance to infections, trouble breathing, increased risk of intracranial bleeding, etc.