Good sleep is necessary for a healthy brain. Six to eight hours of sleep a night is required for an average person! Too little sleep or insomnia interferes with the performance of memory and can lead to depression. It further adds to the stress burden. Good sleep patterns help to improve mood and memory. Besides, stress management also maximizes brainpower. A relaxed mind is a home for the best ideas and memories. Meditation, which has been a part of religious and spiritual life, particularly in Asia, develops peace of mind and lowers stress, regains sleep and health. Western countries are also adopting meditation for the same reason.