1 Heart-related lung problems. 2  Chest X-rays can show changes or problems in your lungs that stem from heart problems. 3  For instance, fluid in your lungs (pulmonary edema) can be a result of congestive heart failure.
A new report suggests that itâs generally safe for the average person to consume 400 milligrams of caffeine each a day. More than 90 percent of the worldâs population consumes caffeine in some form on a regular basis. The stimulant drug (yes, it is considered a drug) helps a person stay awake, alert and productive.
Up to 400 mg a day is ok, but any more is too much. 400 mg of caffeine is equal to the amount in 4 cups of coffee or 10 cans of soda. However, it is not safe to drink 10 cans of soda in one day. This is only an example to show how much caffeine it contains. 2. Think of the benefits.