We often think of the heart, lungs and kidneys as completely separate parts of the body. But your organs work as a connected system, and trouble in one area can sometimes affect another. Heart disease and kidney disease, for example, share several risk factors and can influence each other over time. At the same time, persistent breathing problems may reveal that your lungs need medical attention. Even everyday products such as tea and coffee deserve attention because adulteration can sometimes be detected through simple screening checks.
