Affect (Mental Function)

This study aims to investigate the chronic effects of ETAS® on cognitive, affective and neural outcomes in healthy adults aged 60-80 years with mild to moderate subjective cognitive complaints.

The goal of this clinical trial is to learn if using the "See Yourself Differently" (syd) app can help improve quality of life and mental health for university students in Saudi Arabia. The study also aims to see if the app can help lower anxiety and stress, and increase positive feelings while decreasing negative feelings. The main questions it aims to answer are: 1. Does the "syd" app improve the quality of life for university students? 2. Does the "syd" app help lower anxiety and stress in university students 3. Does the "syd" app help increase positive feelings and decrease negative feelings in university students? Researchers will compare students who use the "syd" app to see if it works. Participants will: 1. Use the "syd" app for 3 months. 2. Complete surveys about their quality of life, anxiety, stress, and feelings.