How does the burden of high debt reduce the ability of governments to provide funding for social services and development projects?

According to chapter 4, The Human Costs, how does debt servicing (repaying the interest and principal on loans/debt) to international financial institutions such as the International Monetary Fund (IMF) the World Bank (WB) and foreign governments (like the United States) constrain/impede development in poor countries?
Specifically, how does the burden of high debt reduce the ability of governments to provide funding for social services and development projects? Include in-text citations to the reading.