How many people in the world don't have healthcare?

As of 2021, it was estimated that around 1 billion people worldwide lacked access to essential healthcare services. Factors contributing to this include poverty, lack of infrastructure, and inadequate health systems, particularly in low- and middle-income countries. The COVID-19 pandemic has further exacerbated these disparities, highlighting the urgent need for universal healthcare access. Current statistics may vary, so it's advisable to consult the latest reports for updated figures.