As the days grow shorter and the air turns colder, many individuals experience a dip in their mood known as winter depression or Seasonal Affective Disorder (SAD). This shift is attributed to reduced sunlight exposure, leading to changes in brain chemistry. Common symptoms include persistent sadness, low energy, sleep disturbances, and appetite changes. As the days grow shorter and the air turns colder, many individuals experience a dip in their mood known as winter depression or Seasonal Affective Disorder (SAD). This shift is attributed to reduced sunlight exposure, leading to changes in brain chemistry. Common symptoms include persistent sadness, low energy, sleep disturbances, and appetite changes. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle