A recent study found that older adults with insomnia experience a threefold increase in depressed mood and longer-lasting emotional slump after exposure to inflammation compared to well-rested individuals. This suggests that poor sleep can make the brain more reactive to inflammatory signals, increasing the risk of depression.
Read the full article at https://www.paperleap.com/blog/articles/why-older-adults-with-insomnia-are-more-vulnerable-to-depression-0ccc2y