What causes depression? What we know, don’t know and suspect

The idea that depression is caused by a chemical imbalance in the brain is more than half a century old. The reality is more ...
Science Daily

Depression may be the brain’s early warning sign of Parkinson’s or dementia

Depression in older adults may sometimes signal the early stages of Parkinson’s disease or Lewy body dementia. Researchers found that depression often appears years before diagnosis and remains ...
Psychology Today

Does Depression Come in Stages?

Many illnesses progress over time and can be described as a series of stages. That’s not true of depression. There are different kinds of depression; major depression isn’t the same as bipolar ...
Medscape

Depression at Any Stage of Life Tied to Increased Dementia Risk

Adults with depression have more than double the risk of developing dementia and the risk persists regardless of when in life depression is diagnosed, a large population-based study shows. That the ...

One in five will experience depression. Here’s what causes it

No single ‘depression gene’ has been found, but large studies have identified over 100 genetic risk markers on chromosomes ...