Melatonin levels drop in normal individuals who are exposed to light.

"I just feel that any normal individual, if a friend offers to give them something, they thank them and move on," she said.

The lifetime risk in normal individuals is about 1 in 300.

Later he became interested in the normal individual's adjustment to society.

But then, work was good for people; normal individuals didn't question that.

"I am not a normal individual of my species," Mach said.

It does not necessarily follow that sleep loss would cause these symptoms in otherwise normal individuals.

"And they said, no, this is just for a normal individual."

In normal individuals, the number of repeated units is relatively low.

This form of bacteremia almost never causes problems in normal individuals.