You want to live healthy and long, then don't slouch or slump!

Posture, also, is important to good health. Poor posture constricts the healthy flow of the life energy in the various body parts and vital organs. The best posture is chest out, shoulders back, stomach and abdomen in, and buttocks tucked under. Don’t stand with a swayback or with hunched shoulders. Don’t sit in a slumped position with the spine out of alignment, hampering breathing and the free flow of life energy in the spine. Psychologically, a hunched posture suggests a defeatist attitude. Always sit and stand erect. Be a master of yourself, with your mind on the infinite power within and around you.

Swami Paramhans Yoganandji

While sitting on the computer or driving the car or even when walking, we are in the habit of slumping or slouching. To counteract it, and as you remember these words, from time to time, pull in the stomach, pull the chest and the torso upwards, stretching it somewhat, and hold this position for a few seconds. Then return back to your normal posture. Do this several times in the day and your lungs will get a chance to work better getting more air/oxygen in your body and you will also loosen the plque in your veins which is building up all the time; which will allow you to live healthier and longer life.