Cultivate Moderate Habits
As sadhanas to attain God’s grace, the Sastras advocate devotion to God, sraddah, adherence to dharma and a helping nature.
Similarly, moderation is necessary in food, sleep and waking habits. One who eats too much, or oversleeps, or keeps incessantly awake can never regulate his life. On the matter of food, the Sastras say:

It means that the stomach should be only half full with food, one fourth with water and the rest left empty for air circulation. That is the proper way.
Excess food will affect digestion and meagre intake will lead to undernourishment.
Likewise, one who wastes time sleeping in excess can hardly accomplish anything. For, this will result in laziness and dullness of mind. Also, efficiency will suffer when one keeps continuously awake.
Sri Krishna Paramatma describes this in the Bhagavad Gita as follows:

Let all understand this well, keep everything under control and regulate their lives.
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