These sites help students visualize what large numbers, such as one million, look like. There are online representations of a million, plus hands-on activities. Find out your age in millions of seconds.
Lemon has also been found beneficial as a home remedy for knee pain caused by arthritis. The citric acid found in lemon works as a solvent for uric acid crystals, which is the cause of some types of arthritis. Cut one or two lemons into small pieces. Tie the pieces in a cotton cloth and dip it in warm sesame oil.
Other foods to try: Quinoa, brown rice, and barley. 5. Turmeric. Turmeric is a staple in Indian food. It's rich in a chemical called curcumin. One study found that a curcumin extract worked as well as ibuprofen at easing knee aches and pains.