India, Dec. 26 -- As winter deepens, low mood can shift from occasional blues to Seasonal Affective Disorder (SAD). This phase often brings mental fog, emotional dullness, low motivation, and constant fatigue, making daily tasks feel heavier than usual. Science links this to reduced sunlight exposure, which disrupts serotonin levels responsible for mood balance, while increasing melatonin, the hormone that promotes sleepiness. The result is feeling drained, low, and mentally slow even after enough rest.

From a yogic perspective, this state reflects Tamas, a quality associated with inertia and heaviness. Dr Yogrishi Vishvketu, Global Yoga Educator, Author, and Founder of the Akhanda Yoga Institute, tells HealthShots that simply resting or...