A lack of physical activity can lead to various mental health issues, including increased levels of anxiety and depression. Regular exercise promotes the release of endorphins, which are natural mood lifters. When individuals are inactive, they experience reduced self-esteem, social isolation, and a higher risk of developing chronic mental health conditions. Inactive lifestyles can also result in cognitive decline, making it harder to concentrate and process information. Overall, maintaining an active lifestyle is crucial for both physical and mental well-being.