A healthy diet is important for health, weight management and the appearance of the skin, but supplements can also be useful ...

The formula in the image below shows how you can calculate the elasticity of demand: Investopedia Common examples of products with high elasticity are luxury items and consumer discretionary items ...

Price elasticity measures how demand changes with price; it gauges a firm's pricing power. Investors should examine firms' price elasticity to decide if a product has sustainable profit potential.

If you struggled with the quiz, don't panic - we've got you! You can revise forces and elasticity by clicking the links below.

A research team has developed a deep skin-stimulating LED mask which has been verified in clinical trials to improve dermis elasticity by 340%.