Negative emotions are unpleasant, but a new study suggests they may affect brain health more than previously understood. Researchers in Switzerland examined the link between negative emotions, anxiety, and depression and the development of neurodegenerative diseases and dementia.
The study, published in the journal Nature, looked at brain activity in younger and older participants as they watched others in psychological distress. The results showed that in older adults, negative emotions caused “excessive” changes in neural connections. This was especially true in areas of the brain that manage emotions and handle autobiographical memory.
The study authors wrote that managing these emotions better, for example through meditation, could help limit neurodegeneration. The researchers believe that controlling negative emotions as they arise may protect the brain.
They suggest meditation as one method. Meditation is known to reduce stress and improve concentration and mindfulness. People can also practice mindfulness throughout the day to identify and process their emotions. Working with a mental health professional is another option for those starting to learn emotional management.
Some people may also use botanicals to support emotional balance. Ingredients such as magnesium, lavender, and ashwagandha have research backing their use for promoting calm and a balanced mental state. These supplements are not a replacement for professional care but can be part of a broader approach.
The study adds to a growing body of research on the connection between mental state and physical health. Previous work has linked chronic stress and depression to a higher risk of heart disease and other conditions. The new findings point to a similar link for brain health, particularly as people age.
Managing emotions does not mean avoiding difficult feelings. It involves recognizing them and responding in a way that does not cause lasting distress. This skill may become more important with age, as the brain becomes more sensitive to the effects of negative emotions.
The research was published in July 2026 in the journal Nature. The full study is available online.
