This article discusses the traditional and modern practices of sitting in Japan, as well as tips on how to sit comfortably and maintain good posture when doing so. Seiza, a traditional Japanese sitting posture, involves kneeling with the tops of the feet flat on the floor and the buttocks resting on the heels. Tatami mats are used as floor seating instead of chairs or couches. In modern times, many people opt to use chairs instead of tatami mats for convenience and comfort. Tips for good posture include keeping your back straight, feet flat on the ground, shoulders relaxed, and taking regular breaks every 30 minutes.