Many things can cause shortness of breath, but the most common are asthma, pneumonia, bronchitis, lung cancer, anxiety, an allergic reaction, a lung injury, obesity, heart dysfunction, COPD and many many more things.
As for treating this, see your physician. Hope I helped you!
Answer:
The mechanical advantage of a 3rd class lever is always less than 1. For this class of levers, the input effort is higher than the output load, which is different from second-class levers and some first-class levers. However, the distance moved by the load is greater than the distance moved by the effort.
Explanation:
Swimming, any type of cardio that requires a lot of breathing
Answer:
People differ in the amounts of sleep and rest needed.
Explanation:
You did not elaborate. This was all I could think of.