What is released by the adrenal glands to run faster?

The adrenal glands release adrenaline (also known as epinephrine) during the "fight or flight" response, which prepares the body for rapid action. This hormone increases heart rate, boosts energy supplies, and enhances blood flow to muscles, enabling a person to run faster and react quickly in stressful situations. Additionally, cortisol, another hormone produced by the adrenal glands, can help manage stress and maintain energy levels over a longer period.