And other cancers can cause the same type of brain injury.
The Harvard study participants were reading on an iPad, but researchers said other devices would cause the same effect.
For one thing, Ecstasy does not cause the same dangerous changes in mood and judgment as crack does.
It's malaria, or dengue fever, or one of the many other tropical diseases that cause the same symptoms.
Trees and other plants are filled with water and can cause the same problems even when the sun is shining.
What is more, a turn in interest rates will not cause the same problems for all bond holders.
There is now concern that the current market bounce could cause the same to happen again," Mr Hill added.
Since weight training doesn't cause the same spike, few researchers have thought that it would have a similar effect.
The surprise in this case, Dr. Landrigan said, was that brief but acute exposure to choking dust and smoke might cause the same kind of problem.
The bacteria can cause the same variety of problems in animals and humans, including skin infections, abscesses, joint infections and death.
But scientists have also long wondered whether the needle-shaped nanotubes might cause the same types of disease as needle-shaped asbestos fibers.
