<span>Fitness programs and other self-improvement programs are not always fun when a person does them alone, and can be extremely demotivating in the initial phases. In order to overcome this, one should ask friends to join the program with them. The company of friends and peers will keep you motivated and promote healthy competition among the members of your group, making the experience a more entertaining one.</span>
Currently its somewhere around 135 billion dollars. It got higher than 1998
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When emphysema develops, the alveoli and lung tissue are destroyed. With this damage, the alveoli cannot support the bronchial tubes. The tubes collapse and cause an “obstruction” (a blockage), which traps air inside the lungs. Too much air trapped in the lungs can give some patients a barrel-chested appearance.
hope this helps
I would say it's a compulsion. Hope this helped!
-TTL