Mild problem-solving task improves brain function after a concussion, new study suggests

A mild problem-solving task improves brain functioning after a concussion, according to a new study. Currently there are many questions about rehabilitation and treatment options, with absolute rest often the go-to treatment. But the new study suggests that a simple cognitive task as early as four days after a brain injury activates the region that improves memory function, and may guard against developing depression or anxiety.