According to the Environmental Protection Agency (EPA), it is dangerous to breathe when there is too much smog. Smog contains ozone particles, and elevated ozone levels can have a variety of negative effects on your lungs.
To sum up, Yoga (Asana, Pranayama and Meditation) improves balance, strength, overall flexibility and mental clarity to get more out of the same workout regimen.
With modification, support of props, and specially designed practice, yoga does wonders for people with injuries or chronic pain. It helps to heal and improve health condition, especially mental health.
Pranayama (Breath control) - "Prana" mean Breath or vital energy and "ayama" means control. Yoga establishes connection between the breath and the mind. In Pranayama, by controlling thebreath, one controls the mind.