MIRROR.CO.UK - New research by eHarmony and Imperial College of Business shows that dating apps influence hormone levels like dopamine, cortisol, and testosterone. Swiping, matching, and notifications activate the brain's reward system, creating a cycle similar to gambling. While this can lead to excitement and emotional highs, it also causes fluctuations that may affect mood, stress levels, and energy. These effects are seen across all genders, with both positive and negative hormonal shifts depending on the outcome of interactions.