Answer this question to the best of your ability:
How long should depressed patients practice mindfulness for it to have an effect on their brain?
The duration of mindfulness practice necessary for observing changes in the brain structure and function of depressed individuals can vary depending on factors such as the severity of the depression, the frequency and duration of the meditation practice, and individual differences.

Generally, research has shown that consistent practice over a period of 8 weeks or more can result in significant improvements in mood and brain functioning. However, it is essential for individuals to tailor their mindfulness practice to their specific needs and circumstances, potentially seeking guidance from mental health professionals or experienced meditation teachers.