Recent studies reveal that nearly 90% of serotonin, a key mood-regulating neurotransmitter, is produced in the gut, highlighting a powerful link between gut health and mental wellness (source). The gut-brain axis, a complex communication network connecting the digestive tract and the brain, plays a crucial role in influencing emotions and behavior. However, early signs of gut-related mood changes—such as irritability or anxiety—are often overlooked, making it challenging to identify and address underlying digestive issues before they impact mental health.
Health
17. Aging and the Microbiome As people age, their gut microbiome undergoes significant changes that can impact both digestive and emotional health. Research shows that older…