Breathing through your nose should go all the way down to your belly. breathing properly can reduce your stress levels, improve workouts and boost immunity. breathing correctly means that our bodies are being supplied with the right amount of oxygen, replenishing our brain and other vital organs with essential nutrients. Improper breathing leads to tiring the muscles while workouts, skin disorders and sleep disorders.
SO,Breathe all the way to your belly.
Don't forcefully do it. start practicing it will happen on its own after some days.
Water is necessary for carrying nutrients to your cells, flushing bacteria's from your system, preventing dehydration, and replacing fluids lost from sweating. Research show, 4 to 6 standard glasses which almost equal to 2-2.5 liters of water is required to an Indian body.
Having too much water is also hazardous to health.