Around what pH are most of the substances in your body? Why?

The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of blood and other fluids. The body's pH balance is also called the acid-base or acid-alkaline balance. The right pH levels are needed for good health.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )