Israel says it is determined to destroy Iran's nuclear capabilities in its military campaign, but that it also wants to avoid any nuclear disaster in a region that is home to tens of millions of people and produces much of the world's oil.

With Israel intensifying its attacks on Iran's nuclear program, and President Donald Trump hinting the U.S. might join the effort, here is what we know about the radiation threat, and other health risks.

Israelis lack sleep and experience high anxiety amid the wars with Hamas and Iran as the two Middle East nations exchange deadly aerial blows.