ROLE OF SLEEP IN IMPROVING GUT MICROBIOME DIVERSITY

Before we explain how sleep can improve gut microbiome diversity, one needs to know about the gut-brain axis and its significance. The gut-brain axis is the bidirectional communication between the central and enteric nervous systems. This connection links the emotional and cognitive centres of the brain with intestinal functions. Studies have shown that nearly 40% of patients suffering with digestive disorders also suffer from psychiatric disorders.

Growing evidence suggests the influence of the gut microbiome on sleep quality and vice versa. The total gut microbiome diversity is positively correlated with increased sleep efficiency and total sleep time. Sleep is a physiological state that is linked to the immune system and is associated with several diseases, including cancer, type-2 diabetes and Alzheimer’s disease. This proves the critical interface between sleep physiology and gut microbiome diversity, where microbiome diversity can also influence sleep in the long run. 

However, this pattern can also explain the reduction in sleep quality in older adults. It is assumed that the changes in gut microbiome diversity of older adults contribute to poor sleep quality.