A new study suggests that deliberately changing the rhythm of your breathing can influence how you make decisions by altering activity in both the heart and brain. Researchers from the German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE) and Charité -- Universitätsmedizin Berlin found that longer exhalations increased heart rate variability and made the brain more responsive to rewards, which was associated with bolder choices. The findings were published in Neuron.

Fast breathing and an elevated heart rate are often linked with rapid decision-making. Under pressure, people may become more cautious in an effort to avoid losses, whether they are making an investment, handling a tense workplace situation, or choosing a meal quickly. Slower breathing and a calmer cardiovascular state, by contrast, may encourage a more positive assessment of potential outcomes and make people more willing to take risks.

How Breathing Connects the Body and Brain

Decision-making has traditionally been viewed as a process centered mainly in the brain. The new research examined a broader possibility: that signals from other parts of the body can change brain activity and influence the choices people make.