Stressed-Out People May Have Smaller Brains, Study Says

You already know that stress is bad for your health, but according to a new study published in Neurology, it may also be bad for your brain.

The new study found that middle-aged adults with the highest levels of cortisol had lower brain volume and cognitive functioning than people with lower levels of the hormone, suggesting that stress may be to blame. The hormone cortisol is involved in a range of normal bodily processes, including metabolism, immunity and memory formation.