Read on to learn more about resting heart rate including normal resting heart rates based on age, target heart rate zones during activity and red flags to consider, plus causes of an elevated ...

The main complication of vitamin D toxicity is hypercalcemia, which is higher-than-normal levels of calcium in the blood. Hypercalcemia causes the symptoms of vitamin D toxicity. Vitamin toxicity can ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...

This article describes what happens during a serum iron test. It also explains the normal ranges of iron in the blood and the treatment options for people whose iron levels are too high or too low.