Respiratory failure; changes in the heart's electrical activity that can cause deadly abnormal rhythms; life-threatening low blood pressure caused by dehydration; acute liver failure; low blood cell counts that require blood transfusion; as well as severe vomiting and diarrhea.

A recent study found that 4 in 10 adults found the vaccine process difficult, and another 4 in 10 adults reported needing assistance to schedule their vaccination

Sedentary lifestyles may be the cause of many health issues and shorten our lives, and new research is pointing toward the "cure"—exercise.

This calculator estimates your body fat index based on a range of personal measurements that do not require the use of calipers.