Colour therapy , which is also known as chromotherapy, is a gentle and non-invasive form of healing that focuses on the balance of colour energies in order to sustain harmony between the body, mind and spirit. It is used for a range of illnesses and ailments, such as depression, nervous disorders, etc. But did you know that chromotherapy is also used to keep one's weight in check? The colour Blue is said to reduce one's appetite drastically and so if you want to keep over-eating in check, you might consider painting the walls of your kitchen in blue.

During pregnancy, the expecting mother often faces a lot of health issues, especially in the beginning and advanced stages, such as nausea, depression, hypertension, irritability, etc. To cope with these, colours can play a huge role in helping keep negativity in check. The colour orange for instance, is said to have a positive, uplifting effect on to-be mothers and aids in making one feel less lonely. The colour blue is also used widely since it calms the mother down, but it is best to limit blues to living or sleeping areas since it reduces the appetite.

Were you aware of a stone called haüyne, which is part of the sodalite species? It has sulfur-like hackmanite but also incorporates calcium, bound water, and sometimes potassium. One of the more rarely isolated components of lapis lazuli, haüyne is famous for its gorgeous, supernatural-looking blue colour.
It is quite fragile and brittle and hence limited to being parts of jewelry like pendants, brooches etc. It was first discovered in 1807 in Vesuvian lavas in Monte Somma, Italy and is named by Brunn-Neergard for the French crystallographer René Just Haüy who narrowly escaped the guillotine during the French Revolution.

Beryl, a gemstone also famous for its appearance in a Sherlock Holmes story, is composed of beryllium aluminum cyclosilicate. It is a single mineral with many varieties differentiated by their colour. It can be transparent or opaque and can be White, Colourless, Blue, Red, Green, Yellow, Orange, and Pink. Pure Beryls are colourless and were first used as lenses in 13th century Italy. Beryl is found in Norway, Austria, Germany, Sweden, Ireland and Russia, as well as Brazil, Colombia, Madagascar, Mozambique, Pakistan, South Africa, the United States and Zambia.

Polar bears are the world's largest terrestrial carnivores found in the northernmost regions of Canada, Greenland, Siberia and Norway. So, one would think that these supreme predators have white fur to help camouflage them in the abundant snow, right? Wrong. The fur of a Polar Bear is not really white in colour but is actually hollow and transparent. The thinner undercoat is also colourless. Their hair looks white because the air spaces between strands scatter all light and when something reflects all of the visible wavelengths of light, we see the colour white.

The American Lobster, which is the heaviest crustacean in the world, is found along the Atlantic coast of North America. This creature is normally 'dark bluish green to greenish brown' with the body and claws being a shade of red, and the legs being green. But did you know that these lobsters can also be blue? This occurs due to genetic mutations in the crustacean. Approximately 1 in 2 million lobsters are blue. Blue lobsters produce an excessive amount of a particular protein; which, along with a red carotenoid molecule, combine to form a blue complex known as crustacyanin, giving the lobster its blue colour.